Merge tag 'efi-loongarch-for-v6.1-2' into HEAD

Second shared stable tag between EFI and LoongArch trees

This is necessary because the EFI libstub refactoring patches are mostly
directed at enabling LoongArch to wire up generic EFI boot support
without being forced to consume DT properties that conflict with
information that EFI also provides, e.g., memory map and reservations,
etc.