Ketel Marte’s two-run home run highlighted a six-run fourth inning as the Arizona Diamondbacks kept their wild-card playoff hopes alive with an 11-2 victory over the San Diego Padres on Sunday afternoon in Phoenix. Eugenio Suarez and Randal Grichuk also homered for Arizona (89-73), which ends its regular-season schedule in a three-way tie with the New York Mets and the Atlanta Braves for the final two National League wild-card spots. The Mets and Braves, both 88-72,…..