Fix typo in tile_and_distribute_to_workgroups.mlir test (#18982)

Fixes a typo in a lit test that was added in
https://github.com/iree-org/iree/pull/18897.

Signed-off-by: Max Dawkins <max.dawkins@gmail.com>
diff --git a/compiler/src/iree/compiler/Codegen/Common/test/tile_and_distribute_to_workgroups.mlir b/compiler/src/iree/compiler/Codegen/Common/test/tile_and_distribute_to_workgroups.mlir
index 71e8351..25bf92f 100644
--- a/compiler/src/iree/compiler/Codegen/Common/test/tile_and_distribute_to_workgroups.mlir
+++ b/compiler/src/iree/compiler/Codegen/Common/test/tile_and_distribute_to_workgroups.mlir
@@ -2115,8 +2115,8 @@
         %1 = arith.index_castui %cl_1 : i32 to index
         %2 = arith.index_castui %cl_2 : i32 to index
         %3 = arith.index_castui %cl_3 : i32 to index
-        %tile0 = arith.index_castui %cl_3 : i32 to index
-        %tile1 = arith.index_castui %cl_3 : i32 to index
+        %tile0 = arith.index_castui %cl_4 : i32 to index
+        %tile1 = arith.index_castui %cl_5 : i32 to index
         %4 = flow.dispatch.workload.ordinal %0, 0 : index
         %5 = flow.dispatch.workload.ordinal %1, 1 : index
         %6 = flow.dispatch.workload.ordinal %2, 2 : index