usb: set root hub lane counts

Set the the rx_lane and tx_lane count to "2" for USB 3.2 hosts.
For all other older hosts set the default lane counts to 1

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