Merge "Reland "Change to using sysprop for services.core.unboosted"" into rvc-dev am: 15ab8e10 am: 0c376a3f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11387077

Change-Id: I6ec5757bf99cb1dcfaac9f0dbc7c7de5bf34dd6c