Route network requests to corresponding DcTracker

Depending on the current available networks, route the
network requests to the corresponding DcTracker.

Test: Telephony sanity tests
Bug: 73659459

Merged-In: I37dbb7f9d69efa90457afd5b9e4cfa8273b19079
Change-Id: I37dbb7f9d69efa90457afd5b9e4cfa8273b19079
(cherry picked from commit ea45a656)