新增设备主子码流选择，默认为不开启

‘sxh’

2023-06-15 15df08964bb459d6d01ec5ef423eae094eac1c72

 src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/MobilePositionResponseMessageHandler.java

@@ -142,7 +142,7 @@
            }

        } catch (DocumentException e) {
            e.printStackTrace();
            logger.error("未处理的异常 ", e);
        }
    }