message: Fix typo in test/AffineOps/ops.mlir
  Closes
  COPYBARA_INTEGRATE_REVIEW=https://github.com/tensorflow/mlir/pull/135 from bondhugula:patch-1
diff: @@ -44,7 +44,7 @@ func @empty() {
  // Check that an explicit affine terminator is not printed in custom format.
  // Check that no extra terminator is introduced.
  -// CHEKC-LABEL: @affine_terminator
  +// CHECK-LABEL: @affine_terminator
  func @affine_terminator() {
  // CHECK: affine.for
  // CHECK-NEXT: }
  