udev-builtin-net_id: support getting usb path off the host

udev-builtin-net_id: support getting usb path off the host

To support predictable interface names in various embeeded systems
add support for an additional naming scheming using the USB host
interface. Several asics have usb controllers that are platform
devices and not children of a pci interface. These embedded systems
should be able to enumerate interfaces by udev path as well to support
configurations and policies.

Signed-off-by: Charles Hardin <charles.hardin@chargepoint.com>