Use -Werror in external/kmod am: 84d0ce6022 am: 7a6a120af3 am: cbdc557203
am: 1933d64ab2

Change-Id: I075d1366561489cdf6b29e86fede493e9407ea91
diff --git a/Android.bp b/Android.bp
index 44cd399..0736aab 100644
--- a/Android.bp
+++ b/Android.bp
@@ -35,6 +35,7 @@
         "-ffunction-sections",
         "-fdata-sections",
         "-Wall",
+        "-Werror",
         "-Wno-unused-parameter",
         "-Wno-unused-variable",
         "-Dsecure_getenv=getenv",