P2P: Do not include own information in the peer table

When the station is connected to P2P GO after calling p2p_find command
the device sees itself. It is related to lack of filtering itself from
clients connected to P2P GO.

Step by step:
1. dev1: p2p_group_add
2. dev2: p2p_connect <MAC1> pbc join
3. dev1: wps_pbc
4. dev2: p2p_find

Skip P2P client information for our own device from a GO with which
we are connected.

src/p2p/p2p.c

@@ -404,6 +404,9 @@ static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
 
 	for (c = 0; c < info.num_clients; c++) {
 		struct p2p_client_info *cli = &info.client[c];
+		if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
+			      ETH_ALEN) == 0)
+			continue; /* ignore our own entry */
 		dev = p2p_get_device(p2p, cli->p2p_device_addr);
 		if (dev) {
 			/*