SubscriptionsPreferenceController shows the unique sim description.

Bug: 148303118
Bug: 150370656
Test: atest -c SubscriptionsPreferenceControllerTest
Change-Id: I041536fe0148087a068c6000383b382b0ff4e17c

src/com/android/settings/sim/SimSelectNotification.java

@@ -139,7 +139,8 @@ public class SimSelectNotification extends BroadcastReceiver {
         }
 
         CharSequence notificationSummary = context.getResources().getString(
-                R.string.enable_mms_notification_summary, SubscriptionUtil.getDisplayName(info));
+                R.string.enable_mms_notification_summary,
+                SubscriptionUtil.getUniqueSubscriptionDisplayName(info, context));
 
         cancelEnableMmsNotification(context);