AUSTIN, Texas — They say everything is bigger in Texas, and it doesn’t get much bigger than a top-5 battle under the lights at Darrell K. Royal-Texas Memorial Stadium. With over 100,000 on hand, No. 5 Georgia rolls into Austin to take on top-ranked Texas Saturday night in the Lone Star State. The Longhorns enter the showdown as the nation’s No. 1 team, undefeated with wins over Michigan and Oklahoma already on their resume and looking to add another. Beating a team led by Carson Beck would quiet any criticism of the competition they’ve faced, previously having seen a former walk-on and a pair …