Merge "Polish home-key from split to pip transition" into udc-dev am: c7a500cc am: 46e4a622

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23833763



Change-Id: I2c16f392bdf02108322a429d1f91012f74c04b8d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>