adjusted ipg time

linux/avb/listener_mediaclock.c

@@ -121,6 +121,7 @@ uint64_t mediaclock_listener_wait_recv_ts( FILE* filepointer, ieee1722_avtp_driv
         ipg_to_last_packet_ns = packet_arrival_time_ns - last_packet_time_ns;
         last_packet_time_ns = packet_arrival_time_ns;
 		fprintf(filepointer, "packet arrival time %lld ns\n", packet_arrival_time_ns);fflush(filepointer);
+		fprintf(filepointer, "ipg %lld ns\n", ipg_to_last_packet_ns);fflush(filepointer);