LOS ANGELES — They would wage wars on the hoop in the driveway, a father who never believed in taking it easy and a son who never could accept his own failure. Life is hard. Cruel. Unflinching. Anthony Lynn wanted his 10-year-old son D’Anton to know this, and understand that nothing came easy. Anthony was the pastor, and their driveway from Colorado to Texas to Florida was his sermon, preaching lessons with every swat of D’Anton’s shots and every game won 21-0.