Fixing UI issue to display preferred network type.

+ Preferred network type will show what the modem returned as preferred
network in Settings.

Bug: 18676277
Change-Id: Ifb9016bc272381f08cd5386b2957702b4903f431
diff --git a/src/com/android/phone/MobileNetworkSettings.java b/src/com/android/phone/MobileNetworkSettings.java
index abbc3f7..3e43ba1 100644
--- a/src/com/android/phone/MobileNetworkSettings.java
+++ b/src/com/android/phone/MobileNetworkSettings.java
@@ -694,6 +694,9 @@
         mButtonPreferredNetworkMode.setValue(Integer.toString(settingsNetworkMode));
         UpdatePreferredNetworkModeSummary(settingsNetworkMode);
         UpdateEnabledNetworksValueAndSummary(settingsNetworkMode);
+        // Display preferred network type based on what modem returns b/18676277
+        mPhone.setPreferredNetworkType(settingsNetworkMode, mHandler
+                .obtainMessage(MyHandler.MESSAGE_SET_PREFERRED_NETWORK_TYPE));
 
         /**
          * Enable/disable depending upon if there are any active subscriptions.