Merge remote-tracking branch 'origin/develop' into ru_rau_enhancement_L1_renaming

Conflicts:
	cmake_targets/build_oai
	cmake_targets/oaisim_build_oai/CMakeLists.template
	cmake_targets/oaisim_mme_build_oai/CMakeLists.template
	cmake_targets/oaisim_noS1_build_oai/CMakeLists.template
	openair1/PHY/LTE_ESTIMATION/lte_sync_time.c
	openair1/PHY/LTE_ESTIMATION/lte_ul_channel_estimation.c
	openair1/PHY/LTE_TRANSPORT/dci_tools.c
	openair1/PHY/LTE_TRANSPORT/if4_tools.c
	openair1/PHY/LTE_TRANSPORT/prach.c
	openair1/PHY/LTE_TRANSPORT/pucch.c
	openair1/PHY/LTE_UE_TRANSPORT/dlsch_demodulation.c
	openair1/PHY/impl_defs_lte.h
	openair1/SCHED/fapi_l1.c
	openair1/SCHED/phy_procedures_lte_eNb.c
	openair1/SIMULATION/LTE_PHY/dlsim.c
	openair2/ENB_APP/enb_config.c
	openair2/ENB_APP/enb_paramdef.h
	openair2/LAYER2/MAC/eNB_scheduler_RA.c
	openair2/LAYER2/MAC/eNB_scheduler_primitives.c
	targets/ARCH/ETHERNET/USERSPACE/LIB/eth_udp.c
	targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c
	targets/RT/USER/lte-enb.c
	targets/RT/USER/lte-ru.c
	targets/RT/USER/lte-softmodem.c
	targets/RT/USER/lte-softmodem.h