Currently, kernel-firmware repo provides two different ways of packaging: one
is the kernel-firmware.rpm that contains all firmware files in raw and
uncompressed format, and another is the split of several subpackages with
compressed files which are gathered by kernel-firmwre-all.rpm meta package.

The former, kernel-firmware.rpm is still provided only for the legacy use cases
(the old SLE), and kernel-firmware-all.rpm already has "Provides:
kernel-firmware" as the better (much smaller) replacement.

Now, we'd like to drop the old big kernel-firmware.rpm finally.  But this needs
fixing the dependencies in some package or images.

As far as I see, the only package that has an explicit use of the uncompressed
files is installation-images.  This needs the changes to adapt
kernel-firmwre-all and handling of compressed files.

Also, KIWI images may have requires of kernel-firmware, and that might be a
bigger problem.