Redefine the `ami` image type in RHEL-8.5 to be based on RHEL
ec2 images. The pipeline has different default settings, therefore the
common "os" pipeline is not used. The RHEL ec2 images have a different
default size than the original `ami` image definition. The RHEL ec2
images use a different default partitioning scheme. Their configuration
is slightly different for each architecture and the x86_64 version
of the image does not support UEFI.
Update rpmrepo snapshots used to generate RHEL-8.5 x86_64 and aarch64
image test cases.
Signed-off-by: Tomas Hozza <thozza@redhat.com>
02ff0fc606