benetel: driver for Benetel's 4G and 5G RRUs

cmake_targets/CMakeLists.txt

executables/nr-ru.c

openair1/SCHED_NR/fapi_nr_l1.c

openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c

openair2/RRC/LTE/rrc_eNB.c

targets/ARCH/COMMON/common_lib.h

targets/ARCH/ETHERNET/benetel/4g/benetel.c

targets/ARCH/ETHERNET/benetel/4g/dpdk_driver.c

targets/ARCH/ETHERNET/benetel/4g/low.c

targets/ARCH/ETHERNET/benetel/4g/low.h

targets/ARCH/ETHERNET/benetel/4g/low_dpdk.c

targets/ARCH/ETHERNET/benetel/4g/shared_buffers.c

targets/ARCH/ETHERNET/benetel/4g/shared_buffers.h

targets/ARCH/ETHERNET/benetel/5g/benetel.c

targets/ARCH/ETHERNET/benetel/5g/dpdk_driver.c

targets/ARCH/ETHERNET/benetel/5g/low.c

targets/ARCH/ETHERNET/benetel/5g/low.h

targets/ARCH/ETHERNET/benetel/5g/low_dpdk.c