x86/mm/numa: Simplify some bit mangling

Minor. Reordered a few lines to lose a superfluous OR operation.

Signed-off-by: Martin Bundgaard <martin@mindflux.org>
Link: http://lkml.kernel.org/r/1363286075-62615-1-git-send-email-martin@mindflux.org


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