Support CarrierService change callback in CarrierPrivilegesTracker

CarrierPrivilegesListener has re-shaped to support CarrierService
change and updated the carrier privileges change callback.

This CL update CarrierPrivilegesTracker to implement the new interface.

Bug: 216549778
Test: atest CarrierPrivilegesTrackerTest
Change-Id: Id7cc95200468b1913cbcf2f0053bc1963f2c66b0
Merged-In: Id7cc95200468b1913cbcf2f0053bc1963f2c66b0
(cherry picked from commit 9ea5fabc)