Connected with data service manager

Routed all data requests and respones through the
new cellular data service and data service manager.

Test: Telephony sanity tests + unit tests
Bug: 64132030
Merged-In: I66adf6492ee1952e20384c38add107c89da0ac41
Change-Id: I66adf6492ee1952e20384c38add107c89da0ac41
(cherry picked from commit 4b2c78c0)