Use -Werror in external/dng_sdk am: 1ab71199fe am: 9fb2201fe0
am: 630e4f3cf3

Change-Id: I4ea4a0267171e4da5cd1cfbcf34aeb882a50f60e
diff --git a/Android.bp b/Android.bp
index 6120477..b7a4c0c 100644
--- a/Android.bp
+++ b/Android.bp
@@ -101,6 +101,7 @@
 
 cc_library{
     name: "libdng_sdk",
+    vendor_available: true,
     defaults: ["libdng_sdk-defaults"],
 
     cflags: ["-DqDNGValidate=0"],