By Andrew Holleran Legendary golfer turned TV analyst Nick Faldo has one piece of advice for controversial star Phil Mickelson. Mickelson, one of the most-popular players in PGA Tour history, withdrew from the PGA Championship this week. He didn’t play in The Masters earlier this year, following his controversial comments on the Saudi League. Faldo offered Mickelson one piece of advice during the PGA Championship. The legendary golfer believes Mickelson has to return to the PGA Tour. “And I think Phil right now, if he wants to protect his legacy, he’s got to return to the PGA Tour,” he said on…