13302 and 13300 had missing module config for slot 2, also the rf switch and voltage info was missing.
Without that the auto setting in the config.yaml will try to use the default lora-hat-rak-6421-pi-hat.yaml and things do not work correctly.
* Add Portduino Enable pins
* Add hat plus custom fields
* Punt on the GPIO device detection for now
* Simplify TX_GAIN_LORA for RAK13302
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Co-authored-by: Ben Meadors <benmmeadors@gmail.com>