Merge "Add a content description for the widget reconfigure button." into sc-dev am: 0dfabe0a1e am: 030e9dcb57

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14690881

Change-Id: Ia2bb57482761a5438b910766b6cd3534c07022fa