Make use of the new multi-stage initramfs rather than the minimal
variant, and inform mkinitfs that the initramfs-extra archive should be
created to save space.
Signed-off-by: Caleb Connolly <caleb@postmarketos.org>
[ci:ignore-count]
Let the user select between two kernel variants using the different
device trees for the different panel variants (ea8061 and s6evr02)
[ci:skip-build]: Already built successfully in CI