who is the of the shield winnerin which the mls cup runner-up and mls cup winner is real salt lake?
CREATE TABLE "table1_11148572_1" (
  "season" real,
  "mls_cup_winner" text,
  "mls_cup_runner_up" text,
  "mls_supporters_shield_winner" text,
  "mls_supporters_shield_runner_up" text
);
SELECT "mls_cup_runner_up" FROM "table1_11148572_1" WHERE "mls_cup_winner"='Real Salt Lake';