[DO NOT MERGE] Stabilize WindowUntrustedTouchTest am: eadc7e55c4

Original change: https://android-review.googlesource.com/c/platform/cts/+/2519577

Change-Id: I11ba370cef723fa0d45d41455d4f4445e76f172b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>