PCIVERBOSE and kern/38579

[Andrew Doran <ad%netbsd.org@localhost>]

Hi,

pci_subr.o is now quite large. I think it's time to retire PCIVERBOSE and
give the job of identification to pcictl, in userspace. It could do with a
way to operate on all busses at once but otherwise, it seems to do the job
already.

Comments?

Thanks,
Andrew