Add emacs header to Makefile.target

Signed-off-by: Anthony Liguori <aliguori@us.ibmc.om>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id: 
diff --git a/Makefile.target b/Makefile.target
index b7406f8..3f5d24a 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -1,3 +1,5 @@
+# -*- Mode: makefile -*-
+
 include config.mak
 include $(SRC_PATH)/rules.mak