staging/usbip: userspace to use linux header for usb_device_speed enum,...

staging/usbip: userspace to use linux header for usb_device_speed enum, missing speeds to speed_strings array

Remove usb_device_speed enum define from usbip_common.h and change it to
include linux/usb/ch9.h instead. Add speed strings for usb wireless and 3.0
to speed_strings array.

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>