We have shim and grub working together on aarch64 now, so we may as well
use them.
(this also makes the case of boot${arch}.efi not mixed-case, which
should guarantee it's in FAT rather than VFAT...)
Related: rhbz#1100048
Signed-off-by: Peter Jones <pjones@redhat.com>
Update the templates and config file to better support EFI on aarch64
on 64-bit ARM.
Resolves: rhbz#1067671
Signed-off-by: David A. Marlin <dmarlin@redhat.com>
Signed-off-by: Brian C. Lane <bcl@redhat.com>