allow_unsupported_io_range

[M. Warner Losh]

In message: <20040117141129.GA28446 at users.altadena.net>
            Pete Carah <pete at altadena.net> writes:
: Someone removed (or changed) "hw.pci.allow_unsupported_io_range".  This breaks
: LOTS of laptops, in particular the pccard hardware.  Causes a hang after
: init is started...

That was me.  Before, we handled bridges incorrectly.  I did add one
item to the allocation stuff.  We now have a higher chance of
collision of resources, which causes the problems.

Warner