Pull up following revision(s) (requested by riastradh in ticket #144):
	sys/dev/pci/radeonfb.c: revision 1.85
	sys/dev/pci/pcivar.h: revision 1.100
	sys/dev/pci/pci_map.c: revision 1.31
	sys/external/bsd/drm2/include/linux/pci.h: revision 1.9
Generalize pci_find_rom and use it to locate x86 video ROM in drm2.
- Make pci_find_rom take the ROM `BAR' size as a parameter, instead
  of using pci_find_mem with the ROM `BAR' to detect the size.
- Use it to find the x86 video ROM in [0xc0000, 0xe0000) in drm2,
  when nothing else reports that location.
- Adapt the one other caller in radeonfb, which already has the
  maximum ROM size handy (romsz).
XXX pullup to netbsd-7
Ticket #144
Pull up following revision(s) (requested by christos in ticket #145):
	crypto/external/bsd/openssh/dist/auth.c: revision 1.9
for consistency use options.use_dns when getting the canonical hostname.
[we do the same below for hosts.allow and deny] reported by rudolf.
Ticket #145