target: Enable compilation for libufdt library

Change to enable compilation for libufdt library
for dtbo support.

Change-Id: Ibfc76f4b1940d24da8e785e08c8d7ac86a3b98c9
diff --git a/target/rules.mk b/target/rules.mk
index 32095ae..571177d 100644
--- a/target/rules.mk
+++ b/target/rules.mk
@@ -4,3 +4,4 @@
 	$(LOCAL_DIR)/init.o \
 	$(LOCAL_DIR)/target_display.o
 
+MODULES +=  lib/libufdt