LOS ANGELES (AP) — When rapper-actor Common was a kid, he carried towels and sneakers as a Chicago Bulls ball boy who was close enough to hear the squeak of shoes and the roar inside the arena. Decades later, Common is helping set a different kind of tone for basketball: He has teamed up with his longtime collaborators to compose “Victory” as the official theme for NBA on Prime , the streaming platform announced Thursday. He worked with Karriem Riggins and James Poyser on the song, which will