By Michael Shapiro Golden State’s star could be out of the lineup for extended time. Warriors guard Steph Curry is out indefinitely due to a sprained ligament in left foot, according to The Athletic’s Shams Charania. Golden State hopes Curry will be ready for the start of the playoffs, per ESPN’s Ramona Shelburne. Curry suffered the injury in Wednesday’s loss to the Celtics as his leg was rolled up on by Celtics guard Marcus Smart. Warriors coach Steve Kerr criticized Smart for the play postgame. “I thought it was a dangerous play,” Kerr said. “I thought Marcus dove into Steph, and that’s what…