HID: nintendo: unlock on error in joycon_leds_create()

These two error paths need to drop the lock before returning.

Fixes: c5e62676

 ("HID: nintendo: add player led support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>