osmo-pcap-server: Accept the client connection from a given host

We now read from a given system.
diff --git a/src/osmo_server_vty.c b/src/osmo_server_vty.c
index 5d7d23d..2a40ef3 100644
--- a/src/osmo_server_vty.c
+++ b/src/osmo_server_vty.c
@@ -107,7 +107,8 @@
 	}
 
 	talloc_free(conn->remote_host);
-	conn->remote_host = talloc_strdup(pcap_server, argv[0]);
+	conn->remote_host = talloc_strdup(pcap_server, argv[1]);
+	inet_aton(argv[1], &conn->remote_addr);
 
 	return CMD_SUCCESS;
 }