ACPI / PM: Drop pm_message_t argument from device suspend callback

None of the drivers implementing the ACPI device suspend callback
uses the pm_message_t argument of it, so this argument may be dropped
entirely from that callback.  This will simplify switching the ACPI
bus type to PM handling based on struct dev_pm_ops.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 9d65047..8a1894a 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -334,7 +334,7 @@
 int acpi_processor_hotplug(struct acpi_processor *pr);
 int acpi_processor_power_exit(struct acpi_processor *pr,
 			      struct acpi_device *device);
-int acpi_processor_suspend(struct acpi_device * device, pm_message_t state);
+int acpi_processor_suspend(struct acpi_device * device);
 int acpi_processor_resume(struct acpi_device * device);
 extern struct cpuidle_driver acpi_idle_driver;