BROOKLYN — A Haitian American chef whose new restaurant received hundreds of reservations for Mother’s Day after a food influencer’s secret visit is now preparing for a possible repeat as Haitian Mother’s Day approaches. “This guy changed everything for me,” Eva Volmar, owner of La Cachette du Coin, said after the glowing review from New York Turk went viral. “Our restaurant went from getting maybe 100 views a week on social media to over 8 mi…