Support for psram on ESP32-PICO-V3-02 (revision v3.0)

[maxwen]

Like using in Adafruit ESP32 Feather V2
I managed to make it working and testing so far showed no problems (still needs more testing though)

maxwen@6ba9b84

Right now this is just a quick and hacky implementation for my personal projects but I would be happy to clean it up
to follow your requirements for contributing. So I was wondering how to get things started.

[bjoernQ]

That's great! In general, we don't have a lot of requirements - we just have https://github.com/esp-rs/esp-hal/blob/main/CONTRIBUTING.md . Just file a PR and make sure to document what changed in CHANGELOG.md and someone will review it

[sebosp]

Hi @maxwen , did you manage to create a PR to get the code upstream? I just got an M5STICKC PLUS2 and it comes with PICO V3-02 and I'd like to try esp-rs on it. Could I use your reference commit? Have you found anything that behaves strange or needs tweaking or would need testing with anything? Thanks!