thunderbolt: Support generic USB4 NHIs

[obiwac]

Summary

Check a PCI device's class, subclass, and progif to figure out if it is
a USB4 NHI. nhi_identifiers is completely removed as only these generic
USB4 NHIs are supported anyway.

Also, remove MODULE_PNP_INFO() for now. Will add this back once
thunderbolt driver is fully functional and tested.

PR: 290827
Sponsored by: The FreeBSD Foundation

[obiwac]

Remove previous IDs.

[jhb]

Does this mean all TB3 support will be removed? Is there more to cleanup in that case?

[obiwac]

Does this mean all TB3 support will be removed?

as I understood it, USB4 pretty much just standardized existing TB3 controllers, so I guess it would be possible to have a TB3 controller for which a USB4 driver/HCM would work. Not that I know of any such controllers. This is the existing check to set HCM usage, which would maybe imply there are some devices which normally use an ICM but for which a HCM would work:

	if (NHI_IS_USB4(sc) || (sc->force_hcm == NHI_FORCE_HCM_ON))
		sc->caps |= NHI_CAP_HCM;

maybe @scottl could elucidate this

Is there more to cleanup in that case?

yeah, we should anyway also remove all this force_hcm stuff seeing as that's all we're going to support.