Add arm64 kernel

patches/arm64/kbuild-buildtar-add-arm64-support.patch

@@ -0,0 +1,19 @@
+diff --git a/scripts/package/buildtar b/scripts/package/buildtar
+index 55887ac84ee4..d624a07a4e77 100755
+--- a/scripts/package/buildtar
++++ b/scripts/package/buildtar
+@@ -105,6 +105,14 @@ case "${ARCH}" in
+ 			cp -v -- "${objtree}/vmlinux" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
+ 		fi
+ 		;;
++	arm64)
++		for i in Image.bz2 Image.gz Image.lz4 Image.lzma Image.lzo ; do
++			if [ -f "${objtree}/arch/arm64/boot/${i}" ] ; then
++				cp -v -- "${objtree}/arch/arm64/boot/${i}" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
++				break
++			fi
++		done
++		;;
+ 	*)
+ 		[ -f "${KBUILD_IMAGE}" ] && cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-kbuild-${KERNELRELEASE}"
+ 		echo "" >&2