P.K. Subban is on a bit of a roll about The Trade, and the possible reasons behind it.“When I hear these things about the music, about ‘the suits you wear and the way you talk,’ or ‘you were speaking your mind’ — I mean, we’re professionals. As long as you perform like a professional on the ice, I mean, you look at my age, I’m just coming into my prime, I’m 27 years old, these are supposed to be the best years of my career coming,” he says.“I wanted to give them to the team that drafted me.”Subban is saying all this publicly, sort of, in an upcoming documentary, Skate Past the Noise, which will premiere on HBO Canada on Friday night. For a guy who has mostly stuck to the typical it’s-a-business type of reaction since the thunderclap of a July trade that …