ACPI: remove cpumask_t usage

set_cpus_allowed() is on the way out; replace it with
set_cpus_allowed_ptr().

Reference: http://lkml.org/lkml/2008/11/6/448

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

drivers/acpi/osl.c

@@ -193,7 +193,7 @@ acpi_status __init acpi_os_initialize(void)
 
 static void bind_to_cpu0(struct work_struct *work)
 {
-	set_cpus_allowed(current, cpumask_of_cpu(0));
+	set_cpus_allowed_ptr(current, cpumask_of(0));
 	kfree(work);
 }