EAP-AKA server: Fix AUTS processing

Commit 8a9f58f2cc ("EAP-AKA server: Store
permanent username in session data") broke AUTS processing by skipping
new authentication triplet fetch after having reported AUTS. Fix this by
started new full authentication sequence immediately after reporting
AUTS so that the updated parameters are available for the Challenge
message.

Signed-hostap: Jouni Malinen <j@w1.fi>

src/eap_server/eap_server_aka.c

@@ -1040,6 +1040,7 @@ static void eap_aka_process_sync_failure(struct eap_sm *sm,
 	data->auts_reported = 1;
 
 	/* Remain in CHALLENGE state to re-try after resynchronization */
+	eap_aka_fullauth(sm, data);
 }