Migrated QosCallbackTracker to the new data stack.

Migrade QosCallbackTracker from com.android.internal.telephony.dataconnection
to com.android.internal.telephony.data. Also made QosCallbackTracker
temporarily work with DcNetworkAgent and TelephonyNetworkAgent.
will clean it up after old data stack is completely removed.

Bug: 196597630
Test: atest QosCallbackTrackerTest
Change-Id: Ie0385211ec3e8c209bf1fda8bb40a5bbd18b52df