Merge remote-tracking branch 'kraxel/usb.82' into staging

# By Gerd Hoffmann (3) and Hans de Goede (1)
# Via Gerd Hoffmann
* kraxel/usb.82:
  xhci: handle USB_RET_BABBLE
  uhci: Use an intermediate buffer for usb packet data
  usb-host: add usb_host_full_speed_compat
  usb-host: live migration support for the libusb version

Message-id: 1367920207-1404-1-git-send-email-kraxel@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>