Merge "Using rotate split layout while split active" into sc-dev am:...

Merge "Using rotate split layout while split active" into sc-dev am: e59e08b8 am: c4f6972c am: 9d6b9abb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14909655

Change-Id: Ifdc59dc6aed99e929868683636caa8e619c56c64