Hi, I have an AP 1141N-A-K9, from autonomous system, with this IOS ( c1140-k9w7-mx.124-21a.JA1), and a WLC 5508 with Version 7.XI want to convert this AP to ligthway to use with this controller.I download de Version of IOS (c1140-rcvk9w8-tar.124-21a....