Added setup/tear down data support

1. Added setup data network support.
2. Hook validation status down to data stall recovery manager.
3. Prelimanary changes before removing TransportManager.
4. Added tear down network support.
5. Added initial attach APN support.
6. Added set data profiles at modem support.

Bug: 196597630
Test: atest DataNetworkControllerTest DataProfileManagerTest DataProfileTest DataNetworkTest
Merged-In: I3fe553c2717ae2feeec3cc821e647d9e2f70a83d
Change-Id: Ia620c19ef29f832b89d49faeef5235c25a162089