Add config resource to help ATT prepaid

bug:7306353
Change-Id: I8da9e7591ad5e28d5b319df11435333da44fb7d3

Author: Robert Greenwalt

core/res/res/values/config.xml

@@ -984,4 +984,9 @@
     <!-- Whether camera shutter sound is forced or not  (country specific). -->
     <bool name="config_camera_sound_forced">false</bool>
 
+    <!-- Set to true if we need to not prefer an APN.
+         This is being added to enable a simple scenario of pre-paid
+         provisioning on some carriers, working around a bug (7305641)
+         where if the preferred is used we don't try the others. -->
+    <bool name="config_dontPreferApn">false</bool>
 </resources>

core/res/res/values/symbols.xml

@@ -276,6 +276,7 @@
   <java-symbol type="bool" name="config_useDevInputEventForAudioJack" />
   <java-symbol type="bool" name="config_safe_media_volume_enabled" />
   <java-symbol type="bool" name="config_camera_sound_forced" />
+  <java-symbol type="bool" name="config_dontPreferApn" />
 
   <java-symbol type="integer" name="config_cursorWindowSize" />
   <java-symbol type="integer" name="config_longPressOnPowerBehavior" />