fix sysupgrade endian issues

SVN-Revision: 11900

package/base-files/files/lib/upgrade/common.sh

@@ -113,7 +113,7 @@ get_image() {
 }
 
 get_magic_word() {
-	get_image "$1" | dd bs=2 count=1 2>/dev/null | hexdump | awk '$2 { print $2 }'
+	get_image "$1" | dd bs=2 count=1 2>/dev/null | hexdump -C | awk '$2 { print $2 $3 }'
 }
 
 refresh_mtd_partitions() {

target/linux/x86/base-files/lib/upgrade/platform.sh

@@ -2,7 +2,7 @@ platform_check_image() {
 	[ "$ARGC" -gt 1 ] && return 1
 
 	case "$(get_magic_word "$1")" in
-		48eb) return 0;;
+		eb48) return 0;;
 		*)
 			echo "Invalid image type"
 			return 1