CHD electronic cash register support for cdc_acm module

--- drivers/usb/class/cdc-acm.orig.c    2019-11-09 17:13:53.670995034 +0200
+++ drivers/usb/class/cdc-acm.c 2019-11-09 18:37:26.965331576 +0200
@@ -1769,6 +1769,10 @@
        .driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
        },

+       { USB_DEVICE(0x0471, 0x2400), /* CHD electronic cash register */
+       .driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
+       },
+
        { USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */
        .driver_info = CLEAR_HALT_CONDITIONS,
        },