A generic standalone EFI stub for DragonOS kernel, which based on the Linux EFI stub.

Nigel Croxon c0b8d974a6 fix parameter-passing corruption on x86_64 for >= 5 args 12 lat temu
gnu-efi-3.0 c0b8d974a6 fix parameter-passing corruption on x86_64 for >= 5 args 12 lat temu