Merge remote-tracking branch 'kraxel/usb.46' into staging

* kraxel/usb.46: (21 commits)
  usb-ehci: drop assert()
  usb-redir: Notify our peer when we reject a device due to a speed mismatch
  usb-ehci: Drop unused sofv value
  usb-host: rewrite usb_linux_update_endp_table
  usb: use USBDescriptor for endpoint descriptors.
  usb: use USBDescriptor for interface descriptors.
  usb: use USBDescriptor for config descriptors.
  usb: use USBDescriptor for device qualifier descriptors.
  usb: add USBDescriptor, use for device descriptors.
  usb-ehci: frindex always is a 14 bits counter
  usb-ehci: fix ehci_child_detach
  usb-hub: add tracepoints
  usb_packet_set_state: handle p->ep == NULL
  usb-host: add property to turn off pipelining
  usb-host: add usb packet to request tracepoints
  usb-host: trace canceled requests
  usb-host: trace emulated requests
  Add bootindex support to usb-host and usb-redir
  usb-uhci: queuing fix
  usb-uhci: stop queue filling when we find a in-flight td
  ...