Merge "Move staging value application logic to persistent_properties and add...

Merge "Move staging value application logic to persistent_properties and add unit tests" into main am: fa21f12e am: 2854ab55

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2801973



Change-Id: I4dff79023513fea23fc13acee495064ffc02889b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>