[SOC]: Add support for ESP32-S31

[Marza4]

SOC

ESP32

Lora IC

NA

Product Link

https://www.espressif.com/en/products/socs/esp32-s31

Description

Add support for ESP32-S31

https://www.espressif.com/en/products/socs/esp32-s31

[github-actions]

@Marza4, Welcome to Meshtastic! 👋

Thanks for opening your first issue. If it's helpful, an easy way
to get logs is the "Open Serial Monitor" button on the Web Flasher.

If you have ideas for features, note that we often debate big ideas
in the discussions tab
first. This tracker tends to be for ideas that have community
consensus and a clear implementation.

We're very active on discord,
especially the #firmware and #alphanauts-testing channels. If you'll
be around for a while, we'd love to see you there!

Welcome to the community! ❤️

[mverch67]

Needs arduino-esp32 4.0 release (11/26).