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: Iac851b96ae59538f6b6b8a59a96a5e48ae01b7fe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>