He’s a real American gyro. A star-spangled Long Island diner owner surprised eaters who woke up before 4 a.m. to be part of a special Fourth of July Fox & Friends live shoot on site by paying for every single one of their meals out of an unrivaled love of the USA. “Our kitchen went through seven cases of eggs – there’s 30 dozen in each case. We fed a few thousand,” Embassy Diner owner Gus Tsiorvas told The Post. “It’s the most beautiful thing in the world to see so many people gather around for the birth of our...