Disconnect STA on continuous EAP reauth without 4-way handshake completion

Disconnect STA on continuous EAP reauth without 4-way handshake completion

It could have been possible to get into an endless loop of retried EAP
authentication followed by failing or not completed 4-way handshake if
there was a different interpretation of EAP authentication result
(success on AP, failure on STA). Avoid this by limiting the number of
consecutive EAPOL reauth attempts without completing the following 4-way
handshake.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>