This reverts commit 4f44a102.

nscd (Name service cache daemon) is not needed for running OAI

integration_2022_wk24

See merge request oai/openairinterface5g!1591

MR !1382: Semi-automatic code generator for LDPC decoder for AVX2 and AVX512
MR !1521: 5G NR performance improvements for low SNR conditions
MR !1579: pthread_create, RT scheduler, and address sanitizer are incompatible in Ubuntu 18.04
MR !1588: small fix in csi configuration
MR !1583: Encoding/decoding CellGroup at MAC and fix RA with Msg3 carrying DCCH or DTCH messages

Revert "Update downlink MCS table" block of code to function nr_set_pdsch_semi_static to get downlink working again in NSA

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.

Reset ul_failure flag only after sending Msg4 otherwise gNB starts scheduling too early

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

This commit includes reorganization of
all of the SISO/MIMO channel modelling
support being moved into a single CM
file. Furthermore, it includes a bug
fix for the number of MCS simulation
tables (29 total, 0-28).

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.