SME: Retry scan after authentication failure

This is needed to avoid getting stuck if driver fails authentication
request for some reason.

wpa_supplicant/sme.c

@@ -228,6 +228,7 @@ void sme_authenticate(struct wpa_supplicant *wpa_s,
 	if (wpa_drv_authenticate(wpa_s, &params) < 0) {
 		wpa_msg(wpa_s, MSG_INFO, "Authentication request to the "
 			"driver failed");
+		wpa_supplicant_req_scan(wpa_s, 1, 0);
 		return;
 	}