We know who Tom Brady’s rooting for on “Dancing With the Stars.’’ The Pats QB posted a picture of himself on Facebook Wednesday holding a box of Flutie Flakes, the cereal created in 1998 when Doug Flutie was quarterbacking the Buffalo Bills. “Looking good on ‘Dancing with the Stars,’ Flutes!’’ Brady wrote on Facebook. “You’ve always been an inspiration to me on the football field, setting the standard for performing at the highest level for 20+ years. And now putting us all to shame on the dance floor. . . . Good luck on Monday and have fun!!’’