GANGNEUNG, South Korea — The Americans’ gold medal drought is finally over. They needed the first shootout in an Olympic women’s hockey final to do it, too. Jocelyne Lamoureux-Davidson scored a dazzling, triple-deke goal in the sixth round of a shootout thriller and Maddie Rooney stuffed the last two Canadians to wrap up a 3-2 victory over archrival Canada on Thursday. The Americans piled over the boards, throwing gloves in the air before huddling and hugging on the ice — 20 years after the women’s last gold medal in hockey and 38 years to the day after the men’s famous “Miracle on Ice” victory over the Russians in group play at Lake Placid. “I can’t put it into words,” defenseman Kacey Bellamy said.