Add carriers/sim_apn_list/filtered/subId url to fetch APNs of current SIM

Revert carriers/filtered to the original design and add
carriers/sim_apn_list/filtered/subId url to fetch APNs of current SIM

Bug: 115709816
Test: 1.Live network test, 2.DcTrackerTest
Change-Id: I76ae258ba3f653480e4805ed7edc3ede23f633af
Merged-In: I76ae258ba3f653480e4805ed7edc3ede23f633af
2 files changed