MFC r294068, r294265MFC r294068:Add EFI ZFS boot supportMFC r294265:Fix broken DPRINTF and wire up EFI_DEBUG so -DEFI_DEBUG to make works.Relnotes: YesSponsored by: Multiplay
MFC r280950: Move the efi loaders to be under sys/boot/efiIn HEAD this was done to support UEFI on arm64. Merging to stable/10 tofacilitate the merging of later UEFI changes.