fix regressions for large physical cell id values

common/utils/nr/nr_common.c

executables/nr-ue.c

openair1/PHY/NR_TRANSPORT/pucch_rx.c

openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c

openair1/PHY/NR_UE_ESTIMATION/nr_estimation.h

openair1/PHY/NR_UE_TRANSPORT/nr_initial_sync.c

openair1/PHY/NR_UE_TRANSPORT/nr_pbch.c