Staging: at76_usb: Add support for OQO Model 01+

Add USB device ID for OQO 01+'s internal wireless LAN

An OQO employee mentions the chip's true identity here:-
   ftp://ftp.oqo.com/unsupported/linux/OQOLinux.html

Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>