InternetPreferenceController V2 (3/n)

Add DataSubscriptionRepository, when cellular connection,
show the active subscription name.

Bug: 339884322
Flag: com.android.settings.flags.internet_preference_controller_v2
Test: manual - on Internet
Test: unit test
Change-Id: If2a3e7f8df1b1ed89bc760ec5165182b3e9b64a8

src/com/android/settings/network/SubscriptionUtil.java

@@ -408,7 +408,6 @@ public class SubscriptionUtil {
      *
      * @return map of active subscription ids to display names.
      */
-    @VisibleForTesting
     public static CharSequence getUniqueSubscriptionDisplayName(
             Integer subscriptionId, Context context) {
         final Map<Integer, CharSequence> displayNames = getUniqueSubscriptionDisplayNames(context);