handling absolute X, Y position event in bsd_mouse.c

Hi,

Zaurus and hpc* port have a touch panel. As for them, the pointer
position is absolutely reported.
Currently It is never handled in
xorg-server/dist/hw/xfree86/os-support/bsd/bsd_mouse.c.
It came to be able to handle the pointer position of addressing absolutely
with the appended patch.
It referred to xorg-server/dist/hw/xfree86/os-support/solaris/sun_mouse.c
in making this patch.

I'll commit the patch if there is no objection.

Regards,
--

-- 
NONAKA Kimihiro
email: nonaka <at> netbsd.org