Add log to help debug crash.

Bug: 65745404
Test: make RunSettingsRoboTests
Change-Id: Ia0d1de57ed33a08a54294e4b9895464e219cbc90

src/com/android/settings/wifi/SavedAccessPointsWifiSettings.java

@@ -116,6 +116,7 @@ public class SavedAccessPointsWifiSettings extends SettingsPreferenceFragment
     }
 
     private void initPreferences() {
+        Log.d(TAG, "Rebuilding the preferences");
         PreferenceScreen preferenceScreen = getPreferenceScreen();
         final Context context = getPrefContext();