some cppcheck fixes and also compilation warnings removal

executables/nr-ru.c

openair1/PHY/CODING/TESTBENCH/ldpctest.c

openair1/PHY/CODING/TESTBENCH/polartest.c

...ir1/PHY/CODING/nrLDPC_encoder/ldpc_generate_coefficient.c

openair1/PHY/CODING/nrPolar_tools/nr_polar_decoder.c

openair1/PHY/CODING/nrPolar_tools/nr_polar_decoding_tools.c

openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c

openair1/PHY/NR_TRANSPORT/nr_dlsch.h

openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c

openair1/PHY/NR_UE_TRANSPORT/cic_filter_nr.c

openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h

openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_coding.c

openair1/PHY/NR_UE_TRANSPORT/pucch_nr.c

openair1/PHY/TOOLS/nr_phy_scope.c

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

openair1/SIMULATION/NR_PHY/dlschsim.c

openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c

openair2/NETWORK_DRIVER/UE_IP/common.c