50 Cents and Starz are at it again, and this time he is calling for a Starz Boycott. 50 is upset because Starz has not scheduled any of his shows for six months. The season finale of Power Book IV: Force with Tommy Egan was this past Sunday, and no other shows are scheduled. That means no BMF, no Kanan, nothing. He now wants folks to boycott the Starz Network…