x86/numa: Check for nonsensical topologies on real hw as well

Instead of only checking nonsensical topologies on numa-emu, do it
on real hardware as well, and print a warning.

Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: x86@kernel.org
Link: http://lkml.kernel.org/n/tip-re15l0jqjtpz709oxozt2zoh@git.kernel.org


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