add onnx model parse api

parser/onnx/onnx_parser.cc

@@ -519,7 +519,7 @@ Status OnnxModelParser::GetModelFromMemory(const char *data, uint32_t size, ge::
   GE_CHECK_NOTNULL(data);
 
   // 1. Get graph from onnx model file.
-  if (!ge::parser::ReadProtoFromArray(data, onnx_model)) {
+  if (!ge::parser::ReadProtoFromArray(data, &onnx_model)) {
     ErrorManager::GetInstance().ATCReportErrMessage(
         "E19021", {"reason"}, {"Read onnx model from memory failed."});
     GELOGE(PARAM_INVALID, "Read onnx model from memory failed.");