Signed-off-by: Michael Brown <mcb30@ipxe.org>

Make the class ID a property of the USB driver (rather than a property
of the USB device ID), and allow USB drivers to specify a wildcard ID
for any of the three component IDs (class, subclass, or protocol).

Signed-off-by: Michael Brown <mcb30@ipxe.org>

Generate a score for each possible USB device configuration based on
the available driver support, and select the configuration with the
highest score.  This will allow us to prefer ECM over RNDIS (for
devices which support both) and will allow us to meaningfully select a
configuration even when we have drivers available for all functions
(e.g. when exposing unused functions via EFI_USB_IO_PROTOCOL).

Signed-off-by: Michael Brown <mcb30@ipxe.org>

Reported-by: Robin Smidsrød <robin@smidsrod.no>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

Signed-off-by: Michael Brown <mcb30@ipxe.org>