Add retry in setProp test. am: 62fe882688 am: 4381d2445c

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2927410

Change-Id: I1bd90fabca970d7d2af989f779c38adb85a45338
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>