MT#56447 honour RECV flag when receiving RTP

Drop RTP if we don't want to receive any

Change-Id: I2d31bd0d93447c9a715476d5ce1a9a18606f7fd7

daemon/media_socket.c

@@ -2459,6 +2459,8 @@ static int stream_packet(struct packet_handler_ctx *phc) {
 	media_packet_rtcp_demux(phc);
 
 	bool is_blackhole = MEDIA_ISSET(phc->mp.media, BLACKHOLE);
+	if (!is_blackhole)
+		is_blackhole = !phc->rtcp && !MEDIA_ISSET(phc->mp.media, RECV);
 
 	// this set payload_type, ssrc_in, and mp payloads
 	media_packet_rtp_in(phc);