PHILADELPHIA — The 76ers were fined by the NBA Saturday for violating the league’s injury reporting rules in their handling of MVP finalist Joel Embiid’s return from an orbital fracture and concussion for Friday’s 99-79 win over the Miami Heat in Game 3 of the Eastern Conference semifinals. The league said the Sixers “failed to disclose [Embiid’s] participation status in an accurate and timely manner” prior to the game. Embiid was initially listed as out for Friday’s game on Thursday evening’s official injury report. Following Friday’s shootaround, the Sixers informed the media that Embiid had…