Add default -Werror to libbufferhub

bug: 66996870
Test: normal build
Change-Id: I1a5d17a2752972f91fd7196128c10dddedca177d
diff --git a/cc/config/global.go b/cc/config/global.go
index 6f27822..52cfb14 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -125,7 +125,6 @@
 		"device/",
 		"frameworks/av/media/libeffects/factory/",
 		"frameworks/av/media/libstagefright/codecs/",
-		"frameworks/native/libs/vr/libbufferhub/",
 		"vendor/",
 	}