“LION King” audiences at the Minskoff have been sniffing the sweet scent of marijuana. It turns out the pot-head fans of former Grateful Dead bassist Phil Lesh, who’s doing a nine-day stint at the Nokia Theater next door, were lighting up. “The smoke was so thick it was seeping through the wall and into the Disney audience, and they started complaining,” a spy at Monday’s show told The Post’s Bruce Golding. “The ushers are now very vigilant and making sure nobody lights up.” A Nokia rep admitted there were complaints. The Minskoff had no comment.