Merge "[FUI09] Expose NetworkStateSnapshot as system API" am: 4dd42cdd5f am: 8203ac16dc

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1536708

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ib59b32356b55200798c5e8c6f85174049b99770c