This exposes the two bits settable by the network agents in Android S on NetworkScore. This is meant to be extensible in future releases, or possibly for OEM upstreams. Test: builds CTS-Coverage-Bug: 184037351 Bug: 167544279 Merged-In: I3c2563d4ae4e3715d0c6270344ba8f7ef067872f Merged-In: Id7ee1bd3e2679f0bd5200d5c299f18a33b87847c Change-Id: Id7ee1bd3e2679f0bd5200d5c299f18a33b87847c (cherry-picked from ag/14010221)