Merge "Removing UI dependency from LauncherModel in case of 2-panel layout" into sc-v2-dev am: d327290762

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15302087

Change-Id: Iee3afcdc1861954dbbabab7445ddb627fb0b72d9