Add Support for Banana Pi M2 Zero

[amd989]

I would like to see some support for this board https://wiki.banana-pi.org/Banana_Pi_BPI-M2_ZERO

I think would be nice if anyone can point to a guide of sorts for people who want to help on setting up these extra devices themselves. I guess I'm not familiar with this setup in particular. Maybe it's obvious to some. But you know, would be cool if there was a recipe to follow.

[floion]

Hi @amd989 thanks for the suggestion.
There is a guide available that walks through the steps for doing exactly that: https://github.com/balena-os/meta-balena/blob/master/contributing-device-support.md
Let us know if the info there needs updating