Do not encrypt EAPOL keys

Keys are coming in data frames. So do not encrypt
data packets until key exchange is finished.

Signed-off-by: Eugene Krasnikov <k.eugene.e@gmail.com>
Configure correct AID and sta_index in AP mode

Encrypted AP mode was not working because of misconfiguration.

Signed-off-by: Eugene Krasnikov <k.eugene.e@gmail.com>