staging: r8188eu: Fix typo in USB_DEVICE list

There is a typo in the device list that interchanges the vendor and
product codes for one of the entries. This exchange was determined
by noticing that the vendor code is 0x07b8 for Abocom at
http://www.linux-usb.org/usb.ids

.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>