Merge "Scroll AllApps to top when new padding is set." into sc-v2-dev am: 460e2c4299 am: a53e01e42d

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15779369

Change-Id: I1244f3cec5d693a2493c35cb3fc16a5d6ecceb46