Don't warn for frame size in tests.

The libc++ update I'm working on trips this (seems to be related to
string constructors now being inlined, but I can't say for sure). ART
itself is still under the limits.

Test: mm
Bug: None
Change-Id: Ic23c3e3aadc8db625767d8ecc727aec84f1e4603
diff --git a/test/Android.bp b/test/Android.bp
index ff408f4..9914371 100644
--- a/test/Android.bp
+++ b/test/Android.bp
@@ -40,6 +40,9 @@
             enabled: false,
         },
     },
+    cflags: [
+        "-Wno-frame-larger-than=",
+    ],
 }
 
 art_cc_defaults {