flag added :Wno-enum-conversion

Change-Id: I3ab2c206be7038fada6ecb3472bf45353e205df0
diff --git a/libbt-vendor/Android.mk b/libbt-vendor/Android.mk
index 92850ca..55b2ed9 100644
--- a/libbt-vendor/Android.mk
+++ b/libbt-vendor/Android.mk
@@ -84,6 +84,7 @@
 LOCAL_CFLAGS += -Wno-unused-parameter
 LOCAL_CFLAGS += -Wno-incompatible-pointer-types-discards-qualifiers
 LOCAL_CFLAGS += -Wno-unused-function
+LOCAL_CFLAGS += -Wno-enum-conversion
 
 ifneq ($(BOARD_ANT_WIRELESS_DEVICE),)
 LOCAL_CFLAGS += -DENABLE_ANT