Merge branch 'develop' of https://gitlab.eurecom.fr/oai/openairinterface5g into code-cleanup-20210716

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

MR !1206 : nr_ue_remove_high_speed_flag
This flag is always set to 1, 
With multiple DMRS symbols configuration, very recent DMRS containing symbol shall be for channel estimation.

MR !1205 : fix-lte-ue-modem-in-docker-container
We bind the socket to any_addr (instead of localhost), so the commands to the UE can come also from a remote machine

MR !1178 : NR_CSIRS_tomerge
Implementation of CSI RS transmission at gNB

MR !1211 : develop-NSA_SA_fixes
Small fixes for NSA and SA

Merge remote-tracking branch 'origin/fix-lte-ue-modem-in-docker-container' into integration_2021_wk30

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

MR !1193 : Update for 5G SA implementation

[CI] for gNB Phy test : update of the execution timings ref values, according to the latest developments

more fixes on gcc warnings, misleading indentation and CPU mitigation when the traffic demand in 5G exeeds the available througput

# Conflicts:
#	openair1/PHY/INIT/nr_init_ru.c

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

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

MR !1197 : dongzhanyi-zte-develop1
function nr_generate_dci_top and nr_generate_dci has the frame_parms parameter, whose type is the structure NR_DL_FRAME_PARMS.
The better way is to pass the parameter as a pointer. 

MR !1176 : NR_phytest_bugfixes
This fixes a bug for configurations with less than 50 PRBs in phy-test mode.

MR !1142 : nr-dl-mimo-2layer