Cult comeuppance. For once Reagan is in synch with his costar, but Bonzo the chimp proved the more able farceur. Animal fans will be saddened to know Bonzo and four stand-ins died tragically in a trailer fire. The first assignment for Freddie de Cordova, longtime producer of the "Tonight Show." We all gotta start somewhere. A sequel followed--BONZO GOES TO COLLEGE--sans Reagan, who apparently couldn't handle the academic overload.