Add config_valid_wappush_index to overlay to fix invalid WAP push msg issue.
diff --git a/overlay/frameworks/base/core/res/res/values-mcc310-mnc120/config.xml b/overlay/frameworks/base/core/res/res/values-mcc310-mnc120/config.xml
new file mode 100644
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+** Copyright 2013, The Android Open Source Project
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+<!-- These resources are around just to allow their values to be customized
+ for different hardware and product builds. -->
+ <!-- Sometimes, PDU has garbages. So, need to use valid index -->
+ <integer name="config_valid_wappush_index">4</integer>