Marc Malkin Senior Film Awards, Events & Lifestyle EditorGetting to play Selena, one of the most popular Mexican American entertainers in modern times, was reason enough for Christian Serratos to take the titular role in Netflix’s new bio series “Selena.”But more than that, Serratos wanted her 3-year-old daughter, Wolfgang, to see her portray the late singer.“I grew up loving Selena so much,” she says during this week’s episode of the Variety and iHeart podcast “The Big Ticket.” “She has