SAN DIEGO — The drought is over. TCU basketball won its first NCAA Tournament game this century, ending what had become a 35-year drought between March Madness victories. And the Horned Frogs left little doubt in the process. TCU showcased its athleticism in running past Seton Hall 69-42 on Friday night at Viejas Arena. It’s the Frogs first victory in March Madness since knocking off Marshall in 1987. TCU coach Jamie Dixon was a player on that ‘87 team. TCU (21-12) advances to the second-round where it’ll face 1-seed Arizona on Sunday with a trip to the Sweet 16 on the line. The winner will ad…