Set device version from config.h for V-USB boards (#7316)

keyboards/mt40/usbconfig.h

@@ -228,7 +228,7 @@ section at the end of this file).
  * with libusb: 0x16c0/0x5dc.  Use this VID/PID pair ONLY if you understand
  * the implications!
  */
-#define USB_CFG_DEVICE_VERSION  0x00, 0x03
+#define USB_CFG_DEVICE_VERSION  (DEVICE_VER & 0xFF), ((DEVICE_VER >> 8) & 0xFF)
 /* Version number of the device: Minor number first, then major number.
  */
 #define USB_CFG_VENDOR_NAME     'T', 'h', 'o', 'm', 'a', 's', 'D', 'e', 'h', 'a', 'e', 'z', 'e'