Display enhanced 4G LTE mode menu if needs

This menu doesn't need for all phones.
If needs, enable enhanced 4G LTE mode menu.

Bug:16966079
Change-Id: I3c104719a9f077fc9cbab4ee9e5f0230067670a3
diff --git a/res/values/config.xml b/res/values/config.xml
index cc0cf1a..0d1ae54 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -120,6 +120,8 @@
     <bool name="config_enabled_lte" translatable="false">false</bool>
     <!-- Show cdma auto network mode in (glabal) roaming -->
     <bool name="config_show_cdma" translatable="false">false</bool>
+    <!-- Display enhanced 4G LTE mode menu if true -->
+    <bool name="config_enhanced_4g_lte_mode_enable" translatable="false">true</bool>
 
     <!-- Package name for the default in-call UI and dialer [DO NOT TRANSLATE] -->
     <string name="ui_default_package" translatable="false">com.android.dialer</string>