Device package changes:
- Replace ALSA configs with dependency (soc-sprd-audio-sc8830)
- Add reboot-mode as dependency
Kernel package changes:
- Use dtbtool-sprd instead of dtbtool
- Move code and device tree to external repo
- Add patch for GCC10
- Add patches for framebuffer
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