adding Nid_cell to nr_pbchsim

Merge branch 'nr-polar-encoder-optimizations' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr-polar-encoder-optimizations

Merge branch 'nr-polar-encoder-optimizations' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr-polar-encoder-optimizations

hardcoding N_PRB of PDCCH in UE MAC (was in UE PHY before). This is still a temporary solution until UE FAPI is correctly done. But at least it decodes the DCI again.
fixing some warinings

Nr pdsch

See merge request oai/openairinterface5g!475

Conflicts:
	cmake_targets/CMakeLists.txt
	openair1/PHY/CODING/TESTBENCH/ldpctest.c
	openair1/PHY/CODING/nrLDPC_encoder/ldpc_encoder2.c
	openair1/PHY/CODING/nrLDPC_encoder/ldpc_generate_coefficient.c
	openair1/PHY/CODING/nr_compute_tbs.c
	openair1/PHY/CODING/nr_segmentation.c
	openair1/PHY/MODULATION/slot_fep_nr.c
	openair1/PHY/NR_REFSIG/nr_dmrs_rx.c
	openair1/PHY/NR_TRANSPORT/nr_dci_tools.c
	openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
	openair1/PHY/NR_UE_TRANSPORT/dci_nr.c
	openair1/SCHED_NR/fapi_nr_l1.c
	openair1/SCHED_NR/nr_ru_procedures.c
	openair1/SCHED_NR/phy_procedures_nr_common.c
	openair1/SCHED_NR/phy_procedures_nr_gNB.c
	openair1/SCHED_NR_UE/defs.h
	openair1/SCHED_NR_UE/fapi_nr_ue_l1.c
	openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c
	targets/RT/USER/nr-gnb.c
	targets/RT/USER/nr-ru.c
	targets/RT/USER/nr-ue.c

SFN bug and cell ID above 255

See merge request oai/openairinterface5g!473

Scrambling issue/ cell ID above 255

See merge request oai/openairinterface5g!471

Nr pbchsim payload check

See merge request oai/openairinterface5g!469