Reverted no. of BWPs to 4

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

openair1/SCHED_NR_UE/pucch_uci_ue_nr.c

openair2/LAYER2/NR_MAC_UE/config_ue.c

openair2/LAYER2/NR_MAC_UE/mac_defs.h

openair2/LAYER2/NR_MAC_UE/nr_ue_dci_configuration.c

openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c

openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c

openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h