Fix vts_treble_sys_prop_test failure am: 5fc0a99eb5 am: d66203e7b5 am: be71fc35fe am: 3f47210d59

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/google/pixel-sepolicy/+/11880427

Change-Id: I1de6427dd224b26e6f7c0ccb292c4e3aa6447c0e