Merge "Update corner radius in app/split screen unfold animation" into tm-qpr-dev am: a100480a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21443744



Change-Id: I549bd696c20e66026a9c7f794f1ded66456c3359
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>