Aroldis Chapman didn’t just pump fastballs in his last outing

BALTIMORE — When Aroldis Chapman registered the final three outs of Thursday’s 8-4 win over the Orioles at Camden Yards, his fastball averaged 96 mph and peaked at 97, so it wasn’t like the Yankees’ lefty closer was throwing salad. Nevertheless, after Richie Martin, the O’s No. 9 hitter, made soft contact on a 96…