Fix external radio_work deinit path

The radio_work type was stored within the dynamically allocated
wpa_radio_work buffer and that buffer ended up getting freed before the
final use of the type string within radio_work_done(). This resulted in
freed memory being used for a debug print. Avoid this by freeing the
wpa_external_work instance after having completed radio_work_done() for
the related work.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

wpa_supplicant/ctrl_iface.c

@@ -5658,8 +5658,8 @@ static int wpas_ctrl_radio_work_done(struct wpa_supplicant *wpa_s, char *cmd)
 			"Completed external radio work %u (%s)",
 			ework->id, ework->type);
 		eloop_cancel_timeout(wpas_ctrl_radio_work_timeout, work, NULL);
-		os_free(ework);
 		radio_work_done(work);
+		os_free(ework);
 		return 3; /* "OK\n" */
 	}