Merge "Fix support for split-screen w/ non-resizable home" into rvc-dev am: a9233b0a am: bf8f7506

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11897517

Change-Id: I3567efd469fc4d846c9516dff87b8c81ed23d438