MT#61856 `!IS_OWN_CALL()` has a dedicated equivalent

There is `IS_FOREIGN_CALL()`, just use it.

Change-Id: Ice23bc34a9ff674717a15d47583e6bb215c8d8d1

daemon/call.c

@@ -5241,7 +5241,7 @@ void call_destroy(call_t *c) {
 
 	mqtt_timer_stop(&c->mqtt_timer);
 
-	if (!IS_OWN_CALL(c))
+	if (IS_FOREIGN_CALL(c))
 		goto no_stats_output;
 
 	///// stats output

daemon/cdr.c

@@ -41,7 +41,7 @@ void cdr_update_entry(call_t * c) {
 	const rtp_payload_type *rtp_pt;
 	struct packet_stream *ps=0;
 
-	if (!IS_OWN_CALL(c))
+	if (IS_FOREIGN_CALL(c))
 		return;
 
 	/* CDRs and statistics */