This is a variation of Cloud-Base-Generic which boots using UKIs.
This also adds uki-editbootconfig.sh script which makes the
image bootable via "UEFI firmware -> shim.efi -> UKI.efi".
Some background information:
https://fedoraproject.org/wiki/Changes/Unified_Kernel_Support_Phase_2
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
