Make.defaults: Enable objcopy on aarch64

Signed-off-by: Callum Farmer <gmbr3@opensuse.org>

Make.defaults

@@ -139,7 +139,6 @@ endif
 # Set HAVE_EFI_OBJCOPY if objcopy understands --target efi-[app|bsdrv|rtdrv],
 # otherwise we need to compose the PE/COFF header using the assembler
 #
-ifneq ($(ARCH),aarch64)
 ifneq ($(ARCH),arm)
 ifneq ($(ARCH),mips64el)
 ifneq ($(ARCH),riscv64)
@@ -147,7 +146,6 @@ export HAVE_EFI_OBJCOPY=y
 endif
 endif
 endif
-endif
 
 ifneq ($(ARCH),arm)
 export LIBGCC=$(shell $(CC) $(ARCH3264) -print-libgcc-file-name)