Fix two bugs for blank voice (empty speech): (#1403)

jianganghan

2024-02-29 f272eb4ef78e12a1ef4ae451b114f980a2682d51

 runtime/onnxruntime/src/commonfunc.h

@@ -9,6 +9,7 @@
{
    std::string msg;
    std::string stamp;
    std::string stamp_sents;
    std::string tpass_msg;
    float snippet_time;
}FUNASR_RECOG_RESULT;