message: Update tf.DeviceIndex in TF MLIR ODS.
  Op was missing a description field and this is autogenerated from TensorFlow op registry.
diff: @@ -2384,6 +2384,9 @@ horizontal and vertices strides, `strides = [1, stride, stride, 1]`.
  def TF_DeviceIndexOp : TF_Op<"DeviceIndex", [NoSideEffect]> {
  let summary = "Return the index of device the op runs.";
  + let description = [{
  + }];
  +
  let arguments = (ins
  StrArrayAttr:$device_names
  );
  