Port based on an unofficial LineageOS port
from https://www.los-legacy.de/17.1/zerofltexx, using kernel from
https://github.com/Exynos7420/android_kernel_samsung_exynos7420/
What works:
- Kernel boots
- Display and touch input (tested with Weston)
- USB networking
- Wifi
For now only including Wifi drivers, as I wasn't yet able to
successfully test audio and camera subsystems (but I intentionally left
these firmware files commented out in the APKBUILD file).
[ci:skip-build]: already built successfully in CI
