fix: serial number of NE license

lib/dborm/dborm.go

@@ -1820,3 +1820,19 @@ func XormGetTraceRawMsg(id int) (int64, []byte, error) {
 
 	return timestamp, rawMsg, nil
 }
+
+func XormGetNESN(neType, neID string) (string, error) {
+	SN := "-"
+	_, err := xEngine.Table("ne_state").
+		Where("ne_type=? and ne_id=?", neType, neID).
+		Asc("timestamp").
+		Cols("serial_num").
+		Limit(1).
+		Get(&SN)
+	if err != nil {
+		log.Error("Failed to get table ne_state:", err)
+		return SN, err
+	}
+
+	return SN, nil
+}