set config_enabled_lte to true by default

AOSP by default set this flag off, thus on AOSP/GSI build, device can't
set preferred NW to 4G. We should trun this on by default. If OEMs dont
want 4G options, they can explicitly disable it in resource overlay

Bug: 117133176
Test: telephony unit test
Change-Id: I109631e422b712fa16e8ad40f467439adaaafc08
diff --git a/res/values/config.xml b/res/values/config.xml
index 855fa92..5ad369f 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -137,7 +137,7 @@
     <!-- DEPRECATED: Use CarrierConfigManager#KEY_PREFER_2G_BOOL -->
     <bool name="config_prefer_2g" translatable="false">true</bool>
     <!-- Show enabled lte option for lte device -->
-    <bool name="config_enabled_lte" translatable="false">false</bool>
+    <bool name="config_enabled_lte" translatable="false">true</bool>
     <!-- Show enabled tdscdma option for device -->
     <bool name="config_support_tdscdma" translatable="false">false</bool>
     <!-- Show enabled tdscdma option for device when connect roaming network -->