Merge "Postponing registering widget listener" into sc-dev am: 1508e062e8

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13475349

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Idc2968f72257f62b1c728b087b38e926145de763