Add retry in setProp test. am: 62fe882688

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

Change-Id: I5360d35a4bca733a09a0a8b944deef6192db408f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>