images: build 'console' image for pinebook pro
The 'console' UI includes networking support, firewall, etc. So it's much more usable than the 'none' UI
The 2nd commit removes support for the 'none' UI on bpo... I figured that there's probably no reason to support this 'UI' anymore now that we have postmarketos-ui-console... but if I'm wrong then let's drop that commit from this series/MR.