Rodney King, the man whose videotaped beating by police officers sparked the 1992 LA riots, was among the bold-faced names checking into VH1’s “Celebrity Rehab” yesterday.
 
Also in “Rehab” are former stripper-turned-”American Idol” Season 1 finalist Nikki McKibbin, actress Tawny Kitaen, model/actress Amber Smith, former Guns N’ Roses drummer Steven Adler and Rod Stewart’s troubled son Sean Stewart. Continued