Amir Khan, the British boxing champ who’s getting married at the Waldorf-Astoria today in front of 350 guests, says he’ll spend more time in town with his native-New Yorker bride, Faryal Makhdoom. “I love New York, it’s an amazing place,” the four-time light-welterweight world champ told us. “We’ll be here more often.” From Bolton, England, Khan said he was enjoying the Big Apple heat wave as he basked atop Haven Rooftop at the Sanctuary Hotel with owners Hank and Brandon Freid. The rooftop’s celebrating its first anniversary June 11, and the Freids were seen inviting fellow first-class passengers Uma Thurman, Nicole Kidman and Cameron Diaz to the bash when they were on their way back from Cannes this week.