xhci: add port status tracing for Get Hub Status requests

Trace the port status of each port of a roothub when
the xhci roothub receives a Get Hub Status request.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>