This reverts commit 87b53883.

This is necessary to compensate the rotation caused by the timeshifted OFDM symbol (1/8 CP)

Currently we cute the PUSCH and PDSCH OFDM symbols starting within the last 1/8th of the CP to avoid ISI.
This time shift leads to a rotation in frequency domain.
The current PRB based channel estimation does not compensate for the rotation _within_ a PRB, leading to bad performance.

This commit should _not_ make it into develop branch, it is just for testing!
Instead, we should do some compensating rotation before channel estimation.

use nb_antennas_tx instead of nb_antennas_rx when copying data from UE->common_vars.txdata to s_re and s_im

Each element is sizeof(int32_t), not sizeof(int32_t *).

Fix SA SIB1 segmentation fault

MR !1114 : sanitize v1
-bugs or dirty code fixed 
-add first version of a rf board calibration tool, not finished

MR !1094 : sim channels
Channel simulation: 
-command mode: to change noise, path loss, model (AWGN, RICE, ...) parameters channel simulation 
-channels separation: each channel can have a different model (for HO test for example) 
-a new build option --sanitize to compile all OAI with gcc --sanitize=address

MR !1034 : new gtpu
-New GTPU implementation

MR !1101 : develop-SA-CBRA
-Implementation of Contention Based Random Access procedures for 5G-NR Initial Access in SA mode (including contributions from BUPT and Fujitsu)

 Conflicts:
	openair1/PHY/TOOLS/nr_phy_scope.c
	targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp

 Conflicts:
	cmake_targets/CMakeLists.txt
	openair1/PHY/TOOLS/time_meas.h
	openair2/LAYER2/PDCP_v10.1.0/pdcp_fifo.c
	openair2/LAYER2/RLC/rlc.h

This reverts commit e06c7276

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

Integration Branch : 2021 week 14

See merge request oai/openairinterface5g!1121

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