btrfs: sysfs, move device id directories to UUID/devinfo

Originally it was planned to create device id directories under
UUID/devinfo, but it got under UUID/devices by mistake. We really want
it under definfo so the bare device node names are not mixed with device
ids and are easy to enumerate.

Fixes: 668e48af ("btrfs: sysfs, add devid/dev_state kobject and device attributes")
Signed-off-by: NAnand Jain <anand.jain@oracle.com>
Reviewed-by: NDavid Sterba <dsterba@suse.com>
Signed-off-by: NDavid Sterba <dsterba@suse.com>

fs/btrfs/sysfs.c

@@ -1295,7 +1295,7 @@ int btrfs_sysfs_add_device_link(struct btrfs_fs_devices *fs_devices,
 
 		init_completion(&dev->kobj_unregister);
 		error = kobject_init_and_add(&dev->devid_kobj, &devid_ktype,
-					     fs_devices->devices_kobj, "%llu",
+					     fs_devices->devinfo_kobj, "%llu",
 					     dev->devid);
 		if (error) {
 			kobject_put(&dev->devid_kobj);