Merge "Add hidden API to support allowed networks reason" into rvc-dev am: 06e61f7cd5 am: 1dfff63b39 am: 1d564e9d7d

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

Change-Id: I12a19db3a7c52403a0a9f8df0d2ecb716d3cf1ff