Merge "Fix support for split-screen w/ non-resizable home" into rvc-dev am: a9233b0a am: bf8f7506 am: e4ef869a

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

Change-Id: Iae23838827e0ad333cf2e4e5ef58c4432bc75921