By Frankie Taddeo COLUMBUS, Ohio (AP) — Cucho Hernandez and Yaw Yeboah scored in the first half, and the Columbus Crew held on to beat LAFC 2–1 on Saturday to win their third MLS Cup. The Crew added the title to their championships in 2008, when they beat the New York Red Bulls, and 2020, when they defeated the Seattle Sounders. Columbus lost to the Portland Timbers in the 2015 title game. Only the LA Galaxy (five) and D.C. United (four) have won more titles. Hernandez put Columbus up 1-0 on a penalty kick. He deposited the ball in the lower left corner for his fifth goal in six playoff matche…