initial cppcheck fixes

ci-scripts/oai-ci-vm-tool

executables/nr-ru.c

openair1/PHY/CODING/TESTBENCH/ldpctest.c

openair1/PHY/CODING/nrPolar_tools/nr_polar_encoder.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_REFSIG/ul_ref_seq_nr.c

openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c

openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c

openair1/PHY/NR_UE_TRANSPORT/dci_nr.c

openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_demodulation.c

openair1/PHY/NR_UE_TRANSPORT/nr_pbch.c

openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_coding.c

openair1/PHY/NR_UE_TRANSPORT/pss_nr.c

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

openair1/SCHED_NR_UE/pucch_uci_ue_nr.c

openair1/SIMULATION/NR_PHY/dlschsim.c

openair1/SIMULATION/NR_PHY/ulschsim.c

openair1/SIMULATION/NR_PHY/ulsim.c