ch32-hal
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WIP: USB PD support
USB PD peripheral is available in:
- CH32X035 (not X033)
- CH32L103 (Low power MCU)
- CH641 (wireless charging MCU)
The register blocks are almost the same, except for:
- CH32L103 has pull down register
- CH641 has an additional CC3
This PR will deprecate https://github.com/ch32-rs/ch32x0-hal .