Fix syntax error in build/all_android.gyp

TBR=thakis@chromium.org
BUG=none
NOTRY=true

Review URL: https://codereview.chromium.org/145013016

git-svn-id: http://src.chromium.org/svn/trunk/src/build@246850 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

all_android.gyp

@@ -11,6 +11,6 @@
       'dependencies': [
         'all.gyp:*',
       ],
-    ],
+    },
   ],
 }