[bsp][wch] move ch32v20x sdk to package#10023

Merged

supperthomas merged 4 commits intoRT-Thread:masterfrom kaidegit:pr-wch-v20x-sdk-as-pkg

Feb 25, 2025

+400-22,578

Commits on Feb 22, 2025

Commits on Feb 25, 2025

[bsp][wch] update readme
kaidegit
committed