Merge "Update split screen string" into udc-dev am: 3dcbfe89

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22242080



Change-Id: Ia088d901d5e192e058c54d222d5b259d91557332
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>