Kobject: rename kobject_add_ng() to kobject_add()

Now that the old kobject_add() function is gone, rename kobject_add_ng()
to kobject_add() to clean up the namespace.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index acc387d..1ec2d31 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -172,7 +172,7 @@
 		kobject_init_ng(&map->kobj, &map_attr_type);
 		map->mem = mem;
 		mem->map = map;
-		ret = kobject_add_ng(&map->kobj, idev->map_dir, "map%d", mi);
+		ret = kobject_add(&map->kobj, idev->map_dir, "map%d", mi);
 		if (ret)
 			goto err;
 		ret = kobject_uevent(&map->kobj, KOBJ_ADD);