Merge remote-tracking branch 'remotes/oai/nr-pdcp-security-w34' into develop-NR_SA_nrUE_security_update

The configuration files named "gnb*conf" have been modified.
Other configuration files were left unmodified.

Note: some modifications have been done to the UE too, but for syntactic
reasons. The UE may fail to work, not tested.

For the UE, we have the problem of handling properly SecurityModeCommand.
We don't verify its integrity. This is a bit complicated to handle properly
and may require some API changes in the PDCP layer. So, as of today, the
integrity of this message is not verified.

Also, NSA mode has been touched, but it should not be a problem. But not
tested, so not sure.

MR !1245: [CI] Improve Iperf packet loss mismatch detection
-improve the Iperf packet loss detection and flagging when pl target (from xml) is below the test result

MR !1246: patch: remove call to end_configmodule
- full fix that set properly PARAMFLAG_NOFREE on relevant parameters

MR !1235: Nr msg4 retransmission
-Retransmission of msg4
-Some reworking in UE harq DLSCH processing

MR !1214: NR UE SA
-SIB1 detection part of initial sync at UE
-Removing a lot of hard-coding in SA procedures
-SSB start subcarrier from command line at UE

MR !1243: Nr skip mac pdu processing when nack
-Skipping processing DLSCH MAC PDU at OAI UE when NACK

MR !1229: fix(nr-ue): apply ip rules/route
-Also added 4G RF sim tests

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Merge remote-tracking branch 'origin/NR_skip_mac_pdu_processing_when_nack' into integration_2021_wk35

comment out end_configmodule meanwhile someone verify all parameters that should have PARAMFLAG_NOFREE

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

  -- Reduce required BW test in 4G RF sim

Docker:
  -- Made the "Thread Parallel Config" a flexible parameter
     default is SINGLE_THREAD
  -- Clean Up on some Docker file about pyyaml
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

MR !1081 : Prb based channel estimation
-An option for using average channel estimates over 1 prb is introduced in DLSCH and ULSCH. 
This improved BLER performance for MCS 28 when prbs are allocated across DC.

MR !1231 : Nr msg3 retransmission
-Implement re-transmission of MSG3 gNB and UE
-Fixes content resolution timer at UE

MR !1236 : nr: add T trace for msg4 (rrc setup)

MR 1170 : 5G nFAPI Improvements
- Bugfixes in packing/unpacking
- Adds uplink indication functionality
- Changes the nFAPI system architecture to account for architecture changes in the develop branch
- Adds nFAPI system documentation
- Removes hardcodings

MR 1222 : Update RRC ASN1 file to version 16.4.1 

MR 1223 : Fixes to NR UE MAC PDU generation 
- included MAC CE sub-PDUs size in the computation of RLC data to transmit this fixes the error with residual mac pdu appearing at gNB side when transmitting higher amount of data 
-  got rid of the nr_generate_ulsch_pdu and moved the relevant UL-SCH MAC PDU generation procedure within the nr_ue_get_sdu and nr_ue_get_rach 
-  reduced memcpy calls and unnecessary memory allocations 
-  fetching RLC data and SDU size from the mac_rlc_data_req, removed the call to mac_rlc_get_buffer_occupancy_ind 
-  introduced a new function to generate the MAC CEs sub-PDUs 
-  removed unnecessary function input parameters 
-  minor fixes and cleanup 
-  enhanced logging

MR 1227 : removed duplicate structure, changed 'x' to 'r' and 'y' to 'i'