Create carrier settings menu

If config_carrier_settings_enable set true, show the menu, which is located in
Settings > More (under Wireless & Networks) > Mobile Networks > Carrier settings

Bug: 10706591
Change-Id: I50b008ac04763fda4b1a340b636bc03de76f257f
diff --git a/res/xml/cdma_options.xml b/res/xml/cdma_options.xml
index 89e2fab..60889a6 100644
--- a/res/xml/cdma_options.xml
+++ b/res/xml/cdma_options.xml
@@ -40,4 +40,13 @@
             <extra android:name="autoStart" android:value="true" />
         </intent>
     </PreferenceScreen>
+
+    <PreferenceScreen
+        android:key="carrier_settings_key"
+        android:title="@string/carrier_settings_title">
+        <intent android:action="android.intent.action.MAIN"
+                android:targetPackage="@string/carrier_settings"
+                android:targetClass="@string/carrier_settings_menu" />
+    </PreferenceScreen>
+
 </PreferenceScreen>