further improvements in UE BWP configuration

openair2/LAYER2/NR_MAC_COMMON/nr_mac.h

openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c

openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.h

openair2/LAYER2/NR_MAC_UE/config_ue.c

openair2/LAYER2/NR_MAC_UE/mac_proto.h

openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c

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_primitives.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c

openair2/LAYER2/NR_MAC_gNB/mac_proto.h