modify the data format of split_dims

mindspore/ccsrc/backend/optimizer/ascend/enhancer/split_inputs_for_reduce_scatter.cc

@@ -42,7 +42,7 @@ std::vector<AnfNodePtr> SplitInputsForReduceScatter::InsertSplitForInput(const F
     }
     AnfAlgo::SetOutputInferTypeAndShape(dtypes, shapes, split.get());
 
-    AnfAlgo::SetNodeAttr("split_dim", MakeValue(0), split);
+    AnfAlgo::SetNodeAttr("split_dim", MakeValue(0L), split);
     AnfAlgo::SetNodeAttr("num_split", MakeValue(SizeToInt(rank_size)), split);
     AnfAlgo::SetNodeAttr("size_splits", MakeValue(size_splits), split);
     kernel_select_->SelectKernel(split);