fix a bunch of compilation warnings

openair1/PHY/NR_TRANSPORT/nr_prach.c

openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c

openair1/PHY/NR_TRANSPORT/pucch_rx.c

openair1/PHY/NR_UE_TRANSPORT/dci_nr.c

openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_demodulation.c

openair1/PHY/NR_UE_TRANSPORT/nr_prach.c

openair1/SCHED_NR_UE/fapi_nr_ue_l1.c

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

openair1/SIMULATION/NR_PHY/prachsim.c

openair1/SIMULATION/NR_PHY/pucchsim.c

openair1/SIMULATION/NR_PHY/ulsim.c

openair2/GNB_APP/gnb_app.c

openair2/LAYER2/NR_MAC_UE/nr_l1_helpers.c

openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c

openair2/LAYER2/NR_MAC_UE/nr_ue_dci_configuration.c

openair2/LAYER2/NR_MAC_UE/rar_tools_nrUE.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c

openair2/NR_UE_PHY_INTERFACE/NR_IF_Module.c

openair3/GTPV1-U/gtpv1u_gNB.c

openair3/S1AP/s1ap_eNB_nas_procedures.c