http: access_log: fix nwsi check

h2 logging often lacked the IP as it checked the af on the sa46_peer of the
child stream when it meant to check the nwsi one.

lib/roles/http/server/access-log.c

@@ -96,7 +96,7 @@ lws_prepare_access_log_info(struct lws *wsi, char *uri_ptr, int uri_len, int met
 
 	nwsi = lws_get_network_wsi(wsi);
 
-	if (wsi->sa46_peer.sa4.sin_family)
+	if (nwsi->sa46_peer.sa4.sin_family)
 		lws_sa46_write_numeric_address(&nwsi->sa46_peer, ta, sizeof(ta));
 	else
 		strncpy(ta, "unknown", sizeof(ta));