This update only applies to Unisys' ES7000 server machines.  The patch adds
a OEM id check to verify the current machine running is actually a Unisys
type box before executing the Unisys OEM parser routine.  It also increases
the MAX_MP_BUSSES definition from 32 to 256.  On the ES7000s, bus ID
numbering can range from 0 to 255.  Without the patch, the system panics if
booted with acpi=off.

This patch has been tested and verified on an authentic ES7000 machine.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>