Use CarrierPrivilegesTracker in DataConnection.

CarrierPrivilegesTracker is included in Phone and DataConnection in
order to populate the NetworkCapabilities for a DataConnection network
as it's brought up. Specifically, CarrierPrivilegesTracker provides the
carrier privileged uids for the Phone under which the DataConnection
exists.

Bug: 147391402
Test: Tested on crosshatch build
Change-Id: I582eec1695d5045348ad204a7096c92d45ff53e0