By Andrew Holleran Troy Aikman could be calling his final NFL game with FOX on Sunday night. The former Dallas Cowboys quarterback turned broadcaster has been working for FOX for roughly two decades. His time with the network could be coming to an end on Sunday, though. Aikman, who has been linked to Amazon, could be leaving FOX for a gig with the streaming service this offseason. Amazon has the full rights to the Thursday Night Football package moving forward. It’s possible that Sunday’s NFC Championship Game could be Aikman’s last alongside Joe Buck and Erin Andrews. “There are conversations…