archiso/mkarchiso: Generalize handling of ucodes
archiso/mkarchiso:
Generalize the handling of ucode files (e.g. copying, signing, size calculation) by introducing the global readonly
array of expected ucode names instead of hardcoding them in various functions.
When making use of ucode files in _make_boot_on_iso9660()
, _make_bootmode_uef-x86.systemd-boot.esp()
and
_sign_netboot_artifacts()
create a list of files that is guaranteed to contain existing files.
Fixes #132 (closed)