kernel-firmware was updated to also load AMD microcode in the initial
ramdisk, hooking into mkinitrd if necessary.

- Add mkinitrd script to add AMD microcode to initrd.
This is needed because microcode driver is built in or gets loaded
automatically via udev early. Therefore the microcode has to be available
in initrd already.
This must not be mixed up with early micorcode loading. This feature will
not be implemented via mkinitrd. Dracut is doing early microcode loading.
- bnc#847158
- mkinitrd scripts:
- mkinitrd_setup-amd_microcode.sh
Adding microcode to the initrd
- mkinitrd_boot-amd_microcode.sh
Triggering the reload at boot
- Correct Supplements string so that the package gets correctly installed
on machines with AMD CPUs
bnc#847158