Merge "Adding support for determining split layout for launcher." into sc-dev am: c52c0782a7 am: 6f875fc851

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14286682

Change-Id: Ia1ebdfafe3c14b71801e5e4343ec2e86e797841a