Support multiple DcTracker for IWLAN refactoring

If the device is configured as AP-assited mode, multiple
DcTrackers will be created for each corresponding
data service. For legacy mode, only one DcTracker will
be created.

Test: Unit tests and telephony sanity tests
Bug: 73659459

Merged-In: Ie72312ff82454eeb008cea5ea3712691a5ec0b3f
Change-Id: Ie72312ff82454eeb008cea5ea3712691a5ec0b3f
(cherry picked from commit b5d8f647afb0075fdb76bdf9e089763b3bf4a7db)
3 files changed