add USB_GET_DEVICEINFO and USB_GET_STRING_DESC ioctl to the uhid(4).
add USB_GET_DEVICEINFO and USB_GET_STRING_DESC ioctl to the uhid(4).

ok jsg@ deraadt@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars