doxygen: finsh: Normalize macro definitions (#10006)

Regular macro definitions according to [1].

Note: for variadic macros such as MSH_CMD_EXPORT, we can
not use normal @param command, otherwise doxygen will
report "@param is not found in the argument list of ...".
So I just write the parameters by manual.

Link: https://rt-thread.github.io/rt-thread/page_howto_macro.html [1]

Signed-off-by: Chen Wang <unicorn_wang@outlook.com>

components/finsh/finsh.h

@@ -36,11 +36,12 @@ typedef long (*syscall_func)(void);
 #endif /* __TI_COMPILER_VERSION__ */
 
 /**
- * Macro to export a command along with its name, description, and options to the symbol table in MSVC.
- * @param name The function name associated with the command.
- * @param cmd The command name.
- * @param desc The description of the command.
- * @param opt The options associated with the command, used for option completion.
+ * @brief Macro to export a command along with its name, description, and options to the symbol table in MSVC.
+ *
+ * @param[in] name The function name associated with the command.
+ * @param[in] cmd The command name.
+ * @param[in] desc The description of the command.
+ * @param[in] opt The options associated with the command, used for option completion.
  */
 #ifdef _MSC_VER
 #define MSH_FUNCTION_EXPORT_CMD(name, cmd, desc, opt)               \
@@ -90,7 +91,7 @@ typedef long (*syscall_func)(void);
 #endif /* FINSH_USING_SYMTAB */
 
 /**
- * Macro definitions to simplify the declaration of exported functions or commands.
+ * @brief Macro definitions to simplify the declaration of exported functions or commands.
  */
 #define __MSH_GET_MACRO(_1, _2, _3, _FUN, ...)  _FUN
 #define __MSH_GET_EXPORT_MACRO(_1, _2, _3, _4, _FUN, ...) _FUN
@@ -111,51 +112,65 @@ typedef long (*syscall_func)(void);
 /**
  * @ingroup group_finsh
  *
- * This macro exports a system function to finsh shell.
+ * @brief This macro exports a system function to finsh shell.
  *
- * @param name the name of function.
- * @param desc the description of function, which will show in help.
+ * @param[in] name Name of function.
+ * @param[in] desc Description of function, which will show in help.
  */
 #define FINSH_FUNCTION_EXPORT(name, desc)
 
 /**
  * @ingroup group_finsh
  *
- * This macro exports a system function with an alias name to finsh shell.
+ * @brief Exports a system function with an alias name to finsh shell.
  *
- * @param name the name of function.
- * @param alias the alias name of function.
- * @param desc the description of function, which will show in help.
+ * @param[in] name Name of function.
+ * @param[in] alias Alias name of function.
+ * @param[in] desc Description of function, which will show in help.
  */
 #define FINSH_FUNCTION_EXPORT_ALIAS(name, alias, desc)
 
 /**
  * @ingroup group_finsh
  *
- * This macro exports a command to module shell.
+ * @brief Exports a command to module shell.
+ *
+ * @b Parameters
+ *
+ * <tt>[in]</tt> @b command Name of the command.
+ *
+ * <tt>[in]</tt> @b desc    Description of the command, which will show in help list.
  *
- * param command is the name of the command.
- * param desc is the description of the command, which will show in help list.
- * param opt This is an option, enter any content to enable option completion
+ * <tt>[in]</tt> @b opt     This is an option, enter any content to enable option completion
+ *
+ * @note This macro can be used in two ways:
+ * @code MSH_CMD_EXPORT(command, desc) @endcode
+ * or
+ * @code MSH_CMD_EXPORT(command, desc, opt) @endcode
  */
-/* MSH_CMD_EXPORT(command, desc) or MSH_CMD_EXPORT(command, desc, opt) */
 #define MSH_CMD_EXPORT(...)                                 \
     __MSH_GET_MACRO(__VA_ARGS__, _MSH_FUNCTION_CMD2_OPT,    \
         _MSH_FUNCTION_CMD2)(__VA_ARGS__)
 
 /**
  * @ingroup group_finsh
  *
- * This macro exports a command with alias to module shell.
+ * @brief Exports a command with alias to module shell.
+ *
+ * @b Parameters
+ *
+ * <tt>[in]</tt> @b command Name of the command.
  *
- * param command is the name of the command.
- * param alias is the alias of the command.
- * param desc is the description of the command, which will show in help list.
- * param opt This is an option, enter any content to enable option completion
- * @code
- *      #define MSH_CMD_EXPORT_ALIAS(command, alias, desc) or
- *      #define MSH_CMD_EXPORT_ALIAS(command, alias, desc, opt)
- * @endcode
+ * <tt>[in]</tt> @b alias   Alias of the command.
+ *
+ * <tt>[in]</tt> @b desc    Description of the command, which will show in help list.
+ *
+ * <tt>[in]</tt> @b opt     An option, enter any content to enable option completion.
+ *
+ * @note This macro can be used in two ways:
+ * @code #define MSH_CMD_EXPORT_ALIAS(command, alias, desc) @endcode
+ * or
+ * @code #define MSH_CMD_EXPORT_ALIAS(command, alias, desc, opt) @endcode
  */
 #define MSH_CMD_EXPORT_ALIAS(...)                                           \
     __MSH_GET_EXPORT_MACRO(__VA_ARGS__, _MSH_FUNCTION_EXPORT_CMD3_OPT,      \
@@ -193,22 +208,25 @@ typedef struct msh_cmd_opt
 /* Command options declaration and definition macros */
 
 /**
- * Declares a static array of command options for a specific command.
- * @param command The command associated with these options.
+ * @brief Declares a static array of command options for a specific command.
+ *
+ * @param[in] command The command associated with these options.
  */
 #define CMD_OPTIONS_STATEMENT(command) static struct msh_cmd_opt command##_msh_options[];
 
 /**
- * Starts the definition of command options for a specific command.
- * @param command The command these options are associated with.
+ * @brief Starts the definition of command options for a specific command.
+ *
+ * @param[in] command The command these options are associated with.
  */
 #define CMD_OPTIONS_NODE_START(command) static struct msh_cmd_opt command##_msh_options[] = {
 
 /**
- * Defines a single command option.
- * @param _id Unique identifier for the option.
- * @param _name The name of the option.
- * @param _des Description of the option.
+ * @brief Defines a single command option.
+ *
+ * @param[in] _id Unique identifier for the option.
+ * @param[in] _name The name of the option.
+ * @param[in] _des Description of the option.
  */
 #define CMD_OPTIONS_NODE(_id, _name, _des) {.id = _id, .name = #_name, .des = #_des},