driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place

For some reason, the drivers/base/class.c file still had the "old style"
of exports, at the end of the file. Move the exports to the proper
location, right after the function, to be correct.

Reviewed-by: Rafael J. Wysocki <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/base/class.c

···
 		error = -EINVAL;
 	return error;
 }
+EXPORT_SYMBOL_GPL(class_create_file_ns);
 
 void class_remove_file_ns(struct class *cls, const struct class_attribute *attr,
 			  const void *ns)
···
 	if (cls)
 		sysfs_remove_file_ns(&cls->p->subsys.kobj, &attr->attr, ns);
 }
+EXPORT_SYMBOL_GPL(class_remove_file_ns);
 
 static struct class *class_get(struct class *cls)
 {
···
 	class_remove_groups(cls, cls->class_groups);
 	kset_unregister(&cls->p->subsys);
 }
+EXPORT_SYMBOL_GPL(class_unregister);
 
 static void class_create_release(struct class *cls)
 {
···
 
 	class_unregister(cls);
 }
+EXPORT_SYMBOL_GPL(class_destroy);
 
 /**
  * class_dev_iter_init - initialize class device iterator
···
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(class_interface_register);
 
 void class_interface_unregister(struct class_interface *class_intf)
 {
···
 
 	class_put(parent);
 }
+EXPORT_SYMBOL_GPL(class_interface_unregister);
 
 ssize_t show_class_attr_string(struct class *class,
 			       struct class_attribute *attr, char *buf)
···
 		return -ENOMEM;
 	return 0;
 }
-
-EXPORT_SYMBOL_GPL(class_create_file_ns);
-EXPORT_SYMBOL_GPL(class_remove_file_ns);
-EXPORT_SYMBOL_GPL(class_unregister);
-EXPORT_SYMBOL_GPL(class_destroy);
-
-EXPORT_SYMBOL_GPL(class_interface_register);
-EXPORT_SYMBOL_GPL(class_interface_unregister);