!13035 fix mix cache

From: @fangzehua
Reviewed-by: @kisnwang,@liangchenghui
Signed-off-by: @liangchenghui

mindspore/ccsrc/frontend/parallel/cache_embedding/cache_embedding.cc

@@ -446,10 +446,7 @@ CNodePtrList FindSparseGatherV2WithCache(const CNodePtrList &cnodes, const Param
   for (size_t i = 0; i < cnodes_size; ++i) {
     if (IsPrimitiveCNode(cnodes[i], prim::kPrimSparseGatherV2)) {
       auto load_node = cnodes[i]->input(1);
-      if (IsPrimitiveCNode(load_node, prim::kPrimCast)) {
-        load_node = load_node->cast<CNodePtr>()->input(1);
-      }
-      if (IsPrimitiveCNode(load_node, prim::kPrimLoad)) {
+      if (IsPrimitiveCNode(load_node, prim::kPrimLoad) || IsPrimitiveCNode(load_node, prim::kPrimCast)) {
         auto param_node = load_node->cast<CNodePtr>()->input(1)->cast<ParameterPtr>();
         if (param_set.find(param_node) != param_set.end()) {
           sparse_gather_v2_with_cache.push_back(cnodes[i]);