Fixes for boot-deploy, mkinitfs

• postmarketos-mkinitfs changelog: https://gitlab.com/postmarketOS/postmarketos-mkinitfs/-/tags/1.1.2
• boot-deploy changelog: https://gitlab.com/postmarketOS/boot-deploy/-/tags/0.3

TODO:

• upgrade boot-deploy

• merge: postmarketos-mkinitfs!11 (merged)

• make new postmarketos-mkinitfs release, add APKBUILD upgrade here

• fix all device packages that use Alpine kernels, they should boot the vmlinuz-* file installed by the alpine package (e.g. vmlinuz-lts, etc) (related: !2521 (merged))