By Daniel Chavkin The Lakers forward weighed in on the Spurs coach’s milestone. View the original article to see embedded media. On Friday night, Spurs head coach Gregg Popovich became the NBA’s all-time winningest coach with his 1336th victory. Since then, Popovich has been getting congratulations from all kinds of people. Lakers forward LeBron James is the latest person to celebrate Popovich’s achievement. “Coach POP!!!!!!!!!!! CONGRATULATIONS!!!! #1 ALL TIME WINS!!” While James has never played for the Spurs, he did play for Popovich with Team USA. Popovich was an assistant coach on the 200…