[roll] Roll fuchsia [netcfg] Improve bus type matching

SDIO is a particular bus for doing IO over a Secure Digital card
interface. It's not quite appropriate to classify every platform bus as
SDIO; the controller could be on-chip, virtualized, or even attached to
some low-bandwidth bus like i2c.

We already discriminate PCI and USB from SDIO, so we probably ought to
be more careful in admitting when we don't know which bus carries the
device. This also reduces reliance on topological path, which ought to
be fine: if we discover a network device, we can still provision it
without knowing how it's attached.

This change introduces two new bus types: "Virtio", which uses standard
bus path naming rules, and "Unknown", which uses MAC-address-based
naming. This also removes a few tests that depended on bus path and bus
type matching failures as these can no longer fail.

Original-Bug: b/319153091
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/976032
Original-Revision: 0450c18dc1298ae69000bf116e7a8f9cedba25db
GitOrigin-RevId: 2cc705a8b775513fc480933efef74a6d6b59786f
Change-Id: I0d3ed7a6d6de44dd8e7687da5a8b2debb831f755