Enable error reporting for SO_TXTIME socket option

packet-exchange/src/send_packet.c

@@ -137,7 +137,7 @@ void init_udp_etf(int use_etf, int packet_priority, char *network_if) {
   if (use_etf) {
     sk_txtime.clockid = CLOCK_ID;
     sk_txtime.flags = 1;
-    // sk_txtime.flags = SOF_TXTIME_REPORT_ERRORS;
+    sk_txtime.flags = SOF_TXTIME_REPORT_ERRORS;
 
     if (setsockopt(fd, SOL_SOCKET, SO_TXTIME, &sk_txtime, sizeof(sk_txtime)))
       error(EXIT_FAILURE, errno, "setsockopt SO_TXTIME failed\n");