Fix warnings. Bug fix.

Change-Id: I80934814ae64d11f0edebfa3b131164207f1aca0
diff --git a/Android.mk b/Android.mk
index 6c908ac..1eb70ec 100644
--- a/Android.mk
+++ b/Android.mk
@@ -48,6 +48,8 @@
 
 LOCAL_MODULE_CLASS := EXECUTABLES
 
+LOCAL_CFLAGS += -Wno-sign-promo
+
 TBLGEN_TABLES :=    \
 	AttrList.inc    \
 	Attrs.inc    \