usb: typec: wcove: Provide fwnode for the port

By registering a software fwnode for the port, we can supply
the connector capabilities to the tcpm using the common USB
connector device properties instead of relying on platform
data (struct tcpc_config).

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>