His first 19 bouts ended in knockout victories, the International Boxing Hall of Fame inducted 'Iron Mike Tyson' over the weekend in Canastota N.Y., near Syracuse.   Sylvester Stallone and Julio Cesar Chavez were also inducted but it was Tyson's emotional speech that highlighted the ceremony.   Mike Tyson once known as the baddest man on the planet, tried to keep his emotions in check at the end of his speech but couldn't hold back.  The tears started when he started talking about his relationship with late trainer and legal guardian Cus D'Amato who is from the Catskill area.  Tyson started his boxing career at the gym in Catskill run by D'Amato.