Add check KEY_HIDE_CARRIER_NETWORK_SETTINGS_BOOL

If it is true, then hide:
1. Network Select settings
2. Apn settings

Fixes: 131709441
Test: RunSettingsRoboTests
Change-Id: I203cda570564a41c5bb54a3ad9e60c7f35c0d30c

src/com/android/settings/network/telephony/ApnPreferenceController.java

@@ -65,8 +65,11 @@ public class ApnPreferenceController extends TelephonyBasePreferenceController i
         final boolean isGsmApn = MobileNetworkUtils.isGsmOptions(mContext, subId)
                 && carrierConfig != null
                 && carrierConfig.getBoolean(CarrierConfigManager.KEY_APN_EXPAND_BOOL);
+        final boolean hideCarrierNetwork = carrierConfig == null
+                || carrierConfig.getBoolean(
+                CarrierConfigManager.KEY_HIDE_CARRIER_NETWORK_SETTINGS_BOOL);
 
-        return isCdmaApn || isGsmApn
+        return !hideCarrierNetwork && (isCdmaApn || isGsmApn)
                 ? AVAILABLE
                 : CONDITIONALLY_UNAVAILABLE;
     }