gflt200: added gflt200 config header.

This wraps the mv_kw2 config header. The intention is for gflt200-specific
(un)configuration to live here.

Change-Id: I6a281c588b2b5d246408324c687ec053f4322006
diff --git a/Makefile b/Makefile
index 827dcd2..581ccb4 100644
--- a/Makefile
+++ b/Makefile
@@ -2951,7 +2951,11 @@
 endif
 endif
 
-	echo "#include <configs/mv_kw2.h>" >> $(obj)include/config.h;
+	@if [ "$(findstring gflt200_config,$(RULE))" ] ; then \
+		echo "#include <configs/gflt200.h>" >> $(obj)include/config.h ; \
+	else \
+		echo "#include <configs/mv_kw2.h>" >> $(obj)include/config.h ; \
+	fi ;
 
 #=================
 # JFFS2 support