The Association of Volleyball Professionals — AVP — brought its upstart AVP League to Aspen for the first time on Saturday. Playing at Koch Park — home of the longtime Labor Day tradition, the Mother Lode — a sold-out crowd saw six Olympians take the court over four games. In its third year of existence, the AVP League is a team-based concept that includes eight main tour stops during the season, most in notable coastal locations. The league kic…