pmbootstrap doesnt build all packages at pmbootstrap install time that are not available

Hi,

I ran into an issue while trying to test out the new v21.12 branch on my pinebook pro. I got the following error:

ERROR: Package 'postmarketos-fde-unlocker' Could not find aport, and could not find this package in any APKINDEX!

@ollieparanoid stated in the matrix chat:

" in theory pmbootstrap should build all packages at pmbootstrap install time that are not available. however it seems this logic doesn't work for postmarketos-fde-unlocker yet. it is provided by osk-sdl and postmarketos-base currently, so pmbootstrap build --arch=aarch64 osk-sdl postmarketos-base should fix it"

Running pmbootstrap build --arch=aarch64 osk-sdl postmarketos-base did fix it.

I also ran into this issue for the linux-postmarketos-rockchip and postmarketos-config-nftables packages. Running pmbootstrap build --arch=aarch64 <package> did fix it for that package.

I was installing the sway ui on the pinebook pro