Merge "Add hidden API to support allowed networks reason" into rvc-dev am: 844ca213 am: 6a86b569 am: 97eea700 am: b346043e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/11715931

Change-Id: I0bcc6e5fdcc4ffe2c37b8025bba52bd4452c3915