ia64: Use for_each_cpu_and() and cpumask_any_and() instead of temp var.

Just a bit of manual neatening, before spatch cleans the rest.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: linux-ia64@vger.kernel.org