platforms.
While here, work around a strange quirk in config(8) that I do not yet
understand. Rearrange which atapi* files have 'optional' vs. 'count'
so that you can have atapifd without atapicd. The only difference should
be that this works instead of having a link error because atapi-all.o got
left out of the kernel.
not work on any real hardware (or fully work on any simulator). Much more
needs to happen before this is actually functional but its nice to see
the FreeBSD copyright message appear in the ia64 simulator.