Merge "Reset fast scroller when All Apps resets." into tm-qpr-dev am: 5969e0524a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21406904

Change-Id: I251a82ed4dd1e71c1ba4877c3669a2279103a6f6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>