Exempt all app notifs from vis stability when unbundling

Flag: com.android.systemui.notification_bundle_ui
Fixes: 422348323
Test: manual
  1. Go to Settings > Notifications > Notification Organizer is ON
  2. Receives many kinds of notifications like YouTube recommend,
     Instagram update, News, advertisements from apps >>> Expect to have
     the bundle groups
  3. Pull down the shade
  4. Long press on an app with at least 2 notifications under a bundle group to trigger GUTS
  5. Toggle OFF "Use Notification Organizer" & Apply
  6. Observe the notifications
Change-Id: Ie6af0533dc6f3ad473c5bd377db214a29318f474