Cynthia Littleton Business EditorNick Cannon quietly returned to hosting his syndicated “Nick Cannon Radio” program on Tuesday, nearly two months after he was forced to step away amid a controversy over anti-Semitic comments that spurred him to apologize.Cannon returned to the microphone on the five-hour daily talk show, which is syndicated by Skyview Networks and Meruelo Media, the parent company of Los Angeles’ Power 106 station.