builddeb: install dtb to /boot and install image as Image.gz

Change-Id: I3e4d92a73e5fd4651bb0bb9272b66d5d2c0c21b6
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index 6df3c9f..144156a 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -119,6 +119,9 @@
 parisc|mips|powerpc)
 	installed_image_path="boot/vmlinux-$version"
 	;;
+arm64)
+	installed_image_path="boot/Image.gz-$version"
+	;;
 *)
 	installed_image_path="boot/vmlinuz-$version"
 esac
@@ -145,7 +148,7 @@
 if is_enabled CONFIG_OF_EARLY_FLATTREE; then
 	# Only some architectures with OF support have this target
 	if [ -d "${srctree}/arch/$SRCARCH/boot/dts" ]; then
-		$MAKE -f $srctree/Makefile INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install
+		$MAKE -f $srctree/Makefile INSTALL_DTBS_PATH="$tmpdir/boot/$version" dtbs_install
 	fi
 fi