Separate VoLTE and VT configurations.

Change-Id: I06d68fe0635922b7daff6a92075e4b3c6b88daa4
diff --git a/src/com/android/phone/MobileNetworkSettings.java b/src/com/android/phone/MobileNetworkSettings.java
index ca8acc8..2c57b47 100644
--- a/src/com/android/phone/MobileNetworkSettings.java
+++ b/src/com/android/phone/MobileNetworkSettings.java
@@ -331,7 +331,7 @@
         }
 
         // Enable enhanced 4G LTE mode settings depending on whether exists on platform
-        if (!ImsManager.isEnhanced4gLteModeSettingEnabledByPlatform(this)) {
+        if (!ImsManager.isVolteEnabledByPlatform(this)) {
             Preference pref = prefSet.findPreference(BUTTON_4G_LTE_KEY);
             if (pref != null) {
                 prefSet.removePreference(pref);