Prepare for better device categorization by moving everything to testing
subdir first.
[skip-ci]: chicken-egg problem: passing pmaports CI depends on pmbootstrap MR
depends on this MR
Related: postmarketos#16
Current status:
- flashing only manually (intel phones have different bootimg format)
- usb networking works
- xorg works using fbdev
- packages needed for wayland are not available for x86
- touch works in xorg and osk-sdl