DPP: Expose config object AKM in wpa_supplicant control interface

hostapd was already exposing this. There's no reason not to expose it in
wpa_supplicant. This allows 3rd party apps interacting with the control
interface to handle DPP events to get configs instead of needing to
dance around with update_config=1 and SAVE_CONFIG.

Signed-off-by: Michal Kazior <michal@plume.com>

wpa_supplicant/dpp_supplicant.c

@@ -1443,6 +1443,8 @@ static int wpas_dpp_handle_config_obj(struct wpa_supplicant *wpa_s,
 				      struct dpp_config_obj *conf)
 {
 	wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_RECEIVED);
+	wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONFOBJ_AKM "%s",
+		dpp_akm_str(conf->akm));
 	if (conf->ssid_len)
 		wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONFOBJ_SSID "%s",
 			wpa_ssid_txt(conf->ssid, conf->ssid_len));