Fix crash for DefaultSubscriptionController

setSummaryProvider() is used instead of setSummary() in
Ia24d88817c99db7ed3fc264dbc9c10e0a09d8a39, but there is still a place
using the setSummary(), mixing these two will lead to crash.

Change it to setSummaryProvider() to prevent crash.

Fix: 233295254
Fix: 233712251
Test: manual
Change-Id: I4627545711b848009c3bd7179f0368ff82e62697
(cherry picked from commit 2e34038233)
Merged-In: I4627545711b848009c3bd7179f0368ff82e62697

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

@@ -168,8 +168,8 @@ public abstract class DefaultSubscriptionController extends TelephonyBasePrefere
 
         if (subs.size() == 1) {
             mPreference.setEnabled(false);
-            mPreference.setSummary(SubscriptionUtil.getUniqueSubscriptionDisplayName(
-                    subs.get(0), mContext));
+            mPreference.setSummaryProvider(pref ->
+                    SubscriptionUtil.getUniqueSubscriptionDisplayName(subs.get(0), mContext));
             return;
         }