WEP-LEAP regression

[Stanislaw Gruszka <sgruszka@redhat.com>]

Our QA reported regression on ath9k connecting to legacy WEP-LEAP AP,
with the following supplicant parameters:

fast_reauth=1
ap_scan=1

eapol_version=1

network={
        ssid="qe-wep-enterprise-cisco"
        key_mgmt=IEEE8021X
        auth_alg=LEAP
        eap=LEAP
        identity="AAA"
        password="BBB"
}

Device associate but DHCP fails (we do no recive any frame).

Reverting both related commits:

commit f88373fa47f3ce6590fdfaa742d0ddacc2ae017f
Author: Felix Fietkau <nbd@openwrt.org>
Date:   Sun Feb 5 21:15:17 2012 +0100

    ath9k: fix a WEP crypto related regression

and
 
commit 7a532fe7131216a02c81a6c1b1f8632da1195a58
Author: Felix Fietkau <nbd@openwrt.org>
Date:   Sat Jan 14 15:08:34 2012 +0100

    ath9k_hw: fix interpretation of the rx KeyMiss flag

fixes the problem.

Felix could you look at this?

Stanislaw