Merge remote-tracking branch 'origin/ubuntu_18_rt_add_san_incompatibility' into integration_2022_wk24

When we run with the RT scheduler and the address sanitizer in Ubuntu
18.04, pthread_create will hang and never create threads.  This adds
some explanatory text in CMakeLists.txt to explain about this issue.

# Conflicts:
#	cmake_targets/autotests/test_case_list.xml
#	openair1/SIMULATION/NR_PHY/dlsim.c
#	openair1/SIMULATION/NR_PHY/ulsim.c

This reverts commit 01227494.

The CI compiles the physims using Asan. This in turn compiles Asan into
the LDPC decoder generator files. Since they are run during build, there
are two options:

1) trigger the build using capability SYS_PTRACE to allow running asan
   when executing the generators.
2) disable asan in the generators.

The first option seems not feasible, as the compilation of the ldpctest
does not succeed (in fact, for a reason I don't understand, ninja seems
to trigger linking and is then blocked indefinitely). Therefore, this
commit simple disables asan in the generators.

integration_2022_wk23

See merge request oai/openairinterface5g!1585

MR !1558: Add 5G SA end-to-end, step-by-step, tutorials for OAI CN5G, OAI gNB and COTS UE
MR !1578: Adding required LOG_As for EpiSci CI testing. (Proxy)
MR !1575: Fix msg3 retransmissions with OAI UE
MR !1577: Fix ULSCH timing measurements in RAN-gNB-nrUE-MONO-TDD-Band78-N300 and logging improvements
MR !1544: NR CORESET harmonization
MR !1287: PUSCH performance improvement
MR !1580: Aligning some internal memory to avoid segfaults

Merge branch 'ldpc-decoder-codegen' of https://gitlab.eurecom.fr/oai/openairinterface5g into ldpc-decoder-codegen

The files openair1/PHY/CODING/nrLDPC_cnProc.h and
openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_cnProc.h have the same name,
and also the same include guard/define. This commit renames the define
in the latter to prevent this name clash.

Physical simulators are built using address sanitizer. During the build
process, we use generators that are themselves built during the build
process. They are also asan, and we therefore need to give the
SYS_PTRACE capability during the build process to have them run
correctly.