Show 'on the lockscreen' setting in more contexts.

- For managed profile apps
- When 'auto' importance is on.

Bug: 28405255
Change-Id: Ia4c0bc6010f157cac18a828069bbcf54087fc663

src/com/android/settings/notification/ImportanceSeekBarPreference.java

@@ -133,6 +133,7 @@ public class ImportanceSeekBarPreference extends SeekBarPreference implements
         mSeekBar.setThumbTintList(sliderTint);
 
         if (mAutoOn) {
+            setProgress(NotificationListenerService.Ranking.IMPORTANCE_DEFAULT);
             mSummary = getProgressSummary(
                     NotificationListenerService.Ranking.IMPORTANCE_UNSPECIFIED);
         }