A Unified Kernel Image (UKI) is a single UEFI PE file that combines
a UEFI boot stub, a Linux kernel image, an initrd, and further resources.
The uki command will locate where the UKI file is and create a GRUB menu
entry to load it.
The Unified Kernel Image Specification: https://uapi-group.org/specifications/specs/unified_kernel_image/
Signed-off-by: Alec Brown <alec.r.brown@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>