Snap for 4386413 from 7b7792449201407186c0cefe4fed1d5e7c74cdb3 to pi-release

Change-Id: I79cfa0dac27eb17f9d5dff0eee48f43717adf279
diff --git a/Android.bp b/Android.bp
index 542e254..617955b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -6,6 +6,8 @@
     cflags: [
         "-Wno-sequence-point",
         "-Wno-extra",
+        "-Wall",
+        "-Werror",
     ],
 
     cppflags: ["-std=c++98"],