Merge "Add hidden API to support allowed networks reason" into rvc-dev am: 06e61f7cd5 am: fd75704133 am: 689b8932d1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11712805

Change-Id: I63d22677de938446cae5f28c7f92d46c2067861d