Merge "Update the split layout while density changed" into udc-dev am: c3662a31 am: 88be75e1 am: 642cc5c1 am: 8ef3aff1

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



Change-Id: Ia7f6352be1a6267f1f3af554c332576db6c5b5be
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>