[android-recovery-zip] Add missing apk keys
I noticed that installing pmos with android-recovery, when running sudo apk update
doesn't trust the alpine repository:
ERROR: https://nl.alpinelinux.org/alpine/edge/main: UNTRUSTED signature
With this PR the keys in /etc/apk/keys
are also added.
It also compress the rootfs archive with gzip -f1
which reduces the time by ~30/40 seconds and the resulting zip grows only by 1-2 MB, for me it seems a good trade-off.