Update TelephonySubscriptionTracker to use new CPCallback interface

CarrierPrivilegesListener is renamed as CarrierPrivilegesCallback.
The previous callback onCarrierPrivilegesChanged is also
reshaped to provide Set of package names and UIDs.

This is the minimum change to remove dependency on CPListener. A
follow-up CL can simplify the logic here with the new
onCarrierServiceChanged API if TelephonySubscriptionTracker only cares
about carrier service.

Bug: 216549778
Test: atest TelephonySubscriptionTrackerTest
Change-Id: I58dbbc4b7b135781bc5f4b5bc35b29075fc6a619