EAP server: Initialize TLS context based on private_key

It is possible for the authentication server to be configured with a
PKCS #12 file that includes a private key, a server certificate, and a
CA certificate. This combination could result in server_cert and ca_cert
parameters not being present and that should still result in TLS context
getting initialized.

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

src/ap/authsrv.c

@@ -133,7 +133,7 @@ int authsrv_init(struct hostapd_data *hapd)
 #ifdef EAP_TLS_FUNCS
 	if (hapd->conf->eap_server &&
 	    (hapd->conf->ca_cert || hapd->conf->server_cert ||
-	     hapd->conf->dh_file)) {
+	     hapd->conf->private_key || hapd->conf->dh_file)) {
 		struct tls_connection_params params;
 
 		hapd->ssl_ctx = tls_init(NULL);