Avoid warnings on unused function/variables if debug is disabled

CONFIG_NO_STDOUT_DEBUG removes wpa_printf() calls, so need to ifdef
some function and variable definitions to avoid compiler warnings.

src/eap_server/eap_server_wsc.c

@@ -34,6 +34,7 @@ struct eap_wsc_data {
 };
 
 
+#ifndef CONFIG_NO_STDOUT_DEBUG
 static const char * eap_wsc_state_txt(int state)
 {
 	switch (state) {
@@ -53,6 +54,7 @@ static const char * eap_wsc_state_txt(int state)
 		return "?";
 	}
 }
+#endif /* CONFIG_NO_STDOUT_DEBUG */
 
 
 static void eap_wsc_state(struct eap_wsc_data *data, int state)

src/wps/wps_dev_attr.c

@@ -284,7 +284,9 @@ static int wps_process_dev_name(struct wps_device_data *dev, const u8 *str,
 static int wps_process_primary_dev_type(struct wps_device_data *dev,
 					const u8 *dev_type)
 {
+#ifndef CONFIG_NO_STDOUT_DEBUG
 	char devtype[WPS_DEV_TYPE_BUFSIZE];
+#endif /* CONFIG_NO_STDOUT_DEBUG */
 
 	if (dev_type == NULL) {
 		wpa_printf(MSG_DEBUG, "WPS: No Primary Device Type received");

src/wps/wps_upnp_ssdp.c

@@ -524,7 +524,9 @@ fail:
 static void ssdp_parse_msearch(struct upnp_wps_device_sm *sm,
 			       struct sockaddr_in *client, const char *data)
 {
+#ifndef CONFIG_NO_STDOUT_DEBUG
 	const char *start = data;
+#endif /* CONFIG_NO_STDOUT_DEBUG */
 	const char *end;
 	int got_host = 0;
 	int got_st = 0, st_match = 0;