x86: Update UV3 hub revision ID

The UV3 hub revision ID is different than expected.  The first
revision was supposed to start at 1 but instead will start at 0.

Signed-off-by: Russ Anderson <rja@sgi.com>
Cc: <stable@kernel.org> # v3.9, v3.10, v3.11
Link: http://lkml.kernel.org/r/20131014161733.GA6274@sgi.com


Signed-off-by: Ingo Molnar <mingo@kernel.org>