Shanola Hampton and her husband, Daren Dukes, have welcomed their second child – a son named Daren O.C. Dukes, or “Doc” for short.  Hampton’s rep reported that the little boy weighed 7 lbs., 6 oz., and measured 20 inches long. The Shameless star announced her son’s birth via Instagram, sharing a photo of mother and child with the caption, “And then…