AVR128DA48 nano every pinout

[cristofercruz]

Any chance you would consider adding a board variant for the AVR128DA48 to match Arduino Nano Every pinout? I would like to use this chip as an anternative to the 4809/Nano Every on an existing project, not mine (https://github.com/xx0x/gbpxl).

MegaCoreX for the 4809 has a board variant like this: https://github.com/MCUdude/MegaCoreX/tree/master/megaavr/variants/nano-every Considering the chip pins for the AVR128DA48 and ATmega4809 are compatible it seems doable.

I actually gave it a shot here at my end comparing the MegaCoreX standard vs Nano Every variants and applying similar changes to DxCore but only got it partially working. My code seems to execute correctly but something was off with serial output. I need to output to Serial1 (nano every has this mapped to PC4-PC7) and couldn't seem to get any output.