WIP: integration_2021_wk48_c

MR !1308 (merged) : Nr add ue improvements
MR !1310 (merged) : parallelization of LDPC decoding on UE side
MR !1300 (merged) : Tx proc optim
MR !1331 (merged) : T tracer: trace MAC DL retransmission PDUs in the gnb
MR !1306 (merged) : fix for harq value in fapi indication according to scf
CI fixes : cherry pick

ci-scripts/conf_files/gnb.band78.nsa_2x2.106PRB.usrpn310.conf

@@ -234,7 +234,7 @@ L1s = (
     	{
 	num_cc = 1;
 	tr_n_preference = "local_mac";
-	pusch_proc_threads = 8;
+	pusch_proc_threads = 4;
         prach_dtx_threshold = 120;
         }  
 );