Merge and move Spreadtrum patches from these kernels to shared-patches:
* linux-finepower-f1
* linux-samsung-{gtel3g,gtelwifi,j1mini3g,j3xnlte}
* linux-zte-p731a20
[ci:skip-build]: already built successfully in CI
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