Make the ISA nic section look like the other device sections with

Make the ISA nic section look like the other device sections with
comments on the same line like so:
	device		foo		# FooInc Brand NetEther cards

Also, move the wireless NIC cards to their own section.

Add commented out wl driver in wireless section.

Remove obsolete or redundant comments about some of the wireless cards
that used to apply but don't since we've removed 'at foobus'.

There should be no functional changes in this change.