Add some debug logging

- Increase logging in SettingsActivity's onCreate and launch fragment
  flow.
- Log class name when enable/disable tiles

Bug: 75030092
Test: logcat
Change-Id: Ieb00228562a79c12aba2198021ece505bc371b58

src/com/android/settings/dashboard/DashboardSummary.java

@@ -106,6 +106,7 @@ public class DashboardSummary extends InstrumentedFragment
     public void onCreate(Bundle savedInstanceState) {
         long startTime = System.currentTimeMillis();
         super.onCreate(savedInstanceState);
+        Log.d(TAG, "Starting DashboardSummary");
         final Activity activity = getActivity();
         mDashboardFeatureProvider = FeatureFactory.getFactory(activity)
                 .getDashboardFeatureProvider(activity);