Adjust 75 PRB radio offset and clean log

lib/src/radio/radio.cc

@@ -420,7 +420,7 @@ void radio::set_tx_srate(double srate)
         nsamples = 167;
       } else if (srate_khz == 15.36e3) {
         // 75 PRB
-        nsamples = 165;
+        nsamples = 160;
       } else if (srate_khz == 23.04e3) {
         // 100 PRB
         nsamples = 160;

srsenb/src/mac/scheduler_harq.cc

@@ -105,7 +105,7 @@ void harq_proc::set_ack(uint32_t tb_idx, bool ack_)
 {
   ack[tb_idx] = ack_;
   ack_received[tb_idx] = true;
-  log_h->info("ACK=%d received pid=%d, tb_idx=%d, n_rtx=%d, max_retx=%d\n", ack_, id, tb_idx, n_rtx[tb_idx], max_retx);
+  log_h->debug("ACK=%d received pid=%d, tb_idx=%d, n_rtx=%d, max_retx=%d\n", ack_, id, tb_idx, n_rtx[tb_idx], max_retx);
   if (!ack_ && (n_rtx[tb_idx] + 1 >= max_retx)) {
     Warning("SCHED: discarting TB %d pid=%d, tti=%d, maximum number of retx exceeded (%d)\n", tb_idx, id, tti, max_retx);
     active[tb_idx] = false;