Merge "Add tests for some split touch cases" into tm-dev am: 506d7d39f3 am: 1e6c7b22f0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/17071708

Change-Id: Ifb67fc850d008db2f5a1b5a92a10cbb9b651938b