Restored 4G LTE setting for Shamu.

Bug: 18378280
Change-Id: I3edf5277feddff9a011e2e1d47184c4da59a6f6e
diff --git a/src/com/android/phone/MobileNetworkSettings.java b/src/com/android/phone/MobileNetworkSettings.java
index 306a653..ee38080 100644
--- a/src/com/android/phone/MobileNetworkSettings.java
+++ b/src/com/android/phone/MobileNetworkSettings.java
@@ -368,6 +368,7 @@
             prefSet.addPreference(mButtonDataRoam);
             prefSet.addPreference(mButtonPreferredNetworkMode);
             prefSet.addPreference(mButtonEnabledNetworks);
+            prefSet.addPreference(mButton4glte);
         }
 
         int settingsNetworkMode = android.provider.Settings.Global.getInt(