[bsp][wch] move ch32v307 sdk to package #5237

Job	Run time
RT-Thread Online Packages (STM32F407 RT-Spark)	5m 8s
RTduino/Arduino Libraries (STM32F412 Nucleo)	9m 45s
RTduino/Arduino Libraries (Raspberry Pico)	10m 59s
others_at32_hc32_ht32	6m 24s
stm32l4_f0_f1	13m 25s
stm32_f2_f4	7m 16s
stm32_f7_g0_h7_mp15_u5_h5_wb5	3m 47s
nxp_renesas	4m 25s
nuvoton	3m 55s
gd32_n32_apm32	3m 29s
Infineon_TI_microchip	6m 20s
mips	1m 25s
aarch64	2m 27s
riscv-none	1m 6s
riscv64-unknown	1m 59s
hpmicro	57s
llvm-arm	4m 28s
simulator	48s
ESP32C3	23m 33s
i386-unknown	1m 3s
nordic(yml)	10m 20s
	2h 2m 59s

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