Revert "DCTracker: upgrade stubbed apn to Qcril Standard."

This reverts commit d9daa49dfcd82ebc218d3bab9208de722e81c130.

Change-Id: Ib5ca18ef8081ba248c632f006e306a7933d7d32d
Merge "Revert "DCTracker: upgrade stubbed apn to Qcril Standard."" into pac-4.4