Merge "Update the split layout while density changed" into udc-dev am: c3662a31 am: 88be75e1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22120409



Change-Id: I0a5d509175f6f469facb1b66571f74c951d1c5c2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>