cpuidle: fix permission for driver name sysfs node

cpuidle driver name sysfs node is read-only, so permissions should be 0444.
Signed-off-by: Mohammad Merajul Islam Molla <meraj.enigma@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/cpuidle/sysfs.c

@@ -445,7 +445,7 @@ static void cpuidle_remove_state_sysfs(struct cpuidle_device *device)
 
 #define define_one_driver_ro(_name, show)                       \
 	static struct cpuidle_driver_attr attr_driver_##_name = \
-		__ATTR(_name, 0644, show, NULL)
+		__ATTR(_name, 0444, show, NULL)
 
 struct cpuidle_driver_kobj {
 	struct cpuidle_driver *drv;