Merge "End scroller if it has already reached the final position" into sc-dev am: 76e27f6d5d am: 9e2cdc33dd am: af38e3fe24

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14491456

Change-Id: If6fe315551196ef1022c9399bd71a4ffe1ea7906