Merge "Move legacy split screen flicker tests for non-resizable to presubmit" into sc-dev am: f9c4ee1f am: 826b7b28

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14117547

Change-Id: I44fbc267ea463125237f3b94f887ac0f76caedd0