P2P: Use ssid instead of wpa_ssid to find GO iface

In order to find a GO interface, there has to be a
comparison among two SSIDs, instead of a wpa_ssid and
a ssid.

Signed-off-by: Eduardo Abinader <eduardo.abinader@openbossa.org>

wpa_supplicant/p2p_supplicant.c

@@ -3712,7 +3712,7 @@ struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
 		    s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
 			continue;
 		if (s->ssid_len != ssid_len ||
-		    os_memcmp(s, s->ssid, ssid_len) != 0)
+		    os_memcmp(ssid, s->ssid, ssid_len) != 0)
 			continue;
 		return wpa_s;
 	}