Merge "Updated NotificationPanelViewController to listen to animateExpandNotificationsPanel and animateCollapsePanels." into rvc-dev am: 489dd715 am: 4eaf0a66 am: 88620f03

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11921452

Change-Id: I4a86ab9bc110135750c77e4827cf2fc47ed26586