“From the writer of Training Day … and The Fast and the Furious …” Yeah, OK. The first trailer for the thriller End of Watch is all that lead-plated machismo and more jammed through the chaotic handheld prism of Crank and distilled with the essence of Jake Gyllenhaal until the potency has you lapsing into a cop-buddy-shoot-’em-up swoon, faceplanting helplessly into writer-director David Ayer’s oversaturated L.A. grit. And it’s got Michael Pe