Merge branch 'nr_pbchsim' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr_pbchsim

cmake_targets/CMakeLists.txt

openair1/PHY/CODING/nrPolar_tools/nr_polar_decoder.c

openair1/PHY/CODING/nrPolar_tools/nr_polar_decoding_tools.c

openair1/PHY/CODING/nrPolar_tools/nr_polar_defs.h

openair1/PHY/CODING/nrPolar_tools/nr_polar_encoder.c

openair1/PHY/CODING/nr_polar_init.c

openair1/PHY/INIT/nr_init.c

openair1/PHY/INIT/nr_init_ue.c

openair1/PHY/INIT/nr_parms.c

openair1/PHY/INIT/phy_init.h

openair1/PHY/LTE_UE_TRANSPORT/initial_sync.c

openair1/PHY/MODULATION/ofdm_mod.c

openair1/PHY/MODULATION/slot_fep_nr.c

openair1/PHY/NR_REFSIG/nr_dmrs_rx.c

openair1/PHY/NR_REFSIG/pss_nr.h

openair1/PHY/NR_REFSIG/refsig_defs_ue.h

openair1/PHY/NR_REFSIG/sss_nr.h

openair1/PHY/NR_TRANSPORT/nr_pbch.c

openair1/PHY/NR_TRANSPORT/nr_pss.c

openair1/PHY/NR_TRANSPORT/nr_sss.c