Merge "Limit notification scroll up to status bar" into sc-dev am: 79e39e8e am: c8b189cf am: 5583a430

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14426423

Change-Id: Id58caeed713ed1ae0df05549e7736b84b09e3317