hi folks.


while looking at bootable cdroms, i've (at ignatios' suggestion)
decided that the sparc and sun3 <machine/sun_disklabel.h> should
move to <dev/sun/disklabel.h> and be only one copy.  i've done
this.  the only thing i had to do was provide a 'sl_pcyl' define
that the sun3 disklabel.h had...

while looking at the sparc sun_disklabel.h i also noticed that there
were two functions that it had prototypes for that were either not
used (sun_dkioctl), or did not exist (sun_disklabel).  it seems that
the old sparc scsi/sd.c called sun_dkioctl() to get sunos compatibilty
for these.  i've moved this code into compat/sunos/sunos_ioctl.c.
i then was able to remove the only prototypes from sun_disklabel.h.


anyone have any comments?  i plan on commiting this on the weekend
(given that all my testing goes OK :-)


.mrg.