Temporarily suppress warnings in external/llvm

Bug: 37867503
Test: Build
Change-Id: I17f887f86c1173116f534722abdd7b4c389fd2ad
diff --git a/Android.bp b/Android.bp
index a29a38a..f7d7b03 100644
--- a/Android.bp
+++ b/Android.bp
@@ -35,6 +35,12 @@
         "-std=c++11",
     ],
 
+    clang_cflags: [
+        // Temporarily suppress the warnings http://b/37867503
+        "-Wno-error=unused-lambda-capture",
+        "-Wno-error=user-defined-warnings",
+    ],
+
     header_libs: ["llvm-headers-no-generated-headers"],
 
     target: {