fix mp structures to be 64bit safe

The embedded pointer types caused them to grow in the 64bit build.
Switch them over to 32bit integers so the structures remain correct.

Author: swetland

include/mp.h

@@ -2,7 +2,7 @@
 
 struct mp {             // floating pointer
   uchar signature[4];           // "_MP_"
-  void *physaddr;               // phys addr of MP config table
+  uint  physaddr;               // phys addr of MP config table
   uchar length;                 // 1
   uchar specrev;                // [14]
   uchar checksum;               // all bytes must add up to 0
@@ -17,10 +17,10 @@ struct mpconf {         // configuration table header
   uchar version;                // [14]
   uchar checksum;               // all bytes must add up to 0
   uchar product[20];            // product id
-  uint *oemtable;               // OEM table pointer
+  uint  oemtable;               // OEM table pointer
   ushort oemlength;             // OEM table length
   ushort entry;                 // entry count
-  uint *lapicaddr;              // address of local APIC
+  uint  lapicaddr;              // address of local APIC
   ushort xlength;               // extended table length
   uchar xchecksum;              // extended table checksum
   uchar reserved;
@@ -42,7 +42,7 @@ struct mpioapic {       // I/O APIC table entry
   uchar apicno;                 // I/O APIC id
   uchar version;                // I/O APIC version
   uchar flags;                  // I/O APIC flags
-  uint *addr;                  // I/O APIC address
+  uint  addr;                  // I/O APIC address
 };
 
 // Table entry types