Merge remote-tracking branch 'origin/NR_RRC_PDCP' into NR_UL_scheduling

cmake_targets/CMakeLists.txt

executables/nr-ue.c

executables/nr-uesoftmodem.c

openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c

openair1/SIMULATION/NR_PHY/dlsim.c

openair1/SIMULATION/NR_PHY/prachsim.c

openair1/SIMULATION/NR_PHY/ulsim.c

openair2/LAYER2/NR_MAC_UE/main_ue_nr.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c

openair2/LAYER2/NR_MAC_gNB/mac_proto.h

openair2/LAYER2/NR_MAC_gNB/main.c

openair2/LAYER2/PDCP_v10.1.0/pdcp.c

openair2/LAYER2/nr_pdcp/nr_pdcp_entity.c

openair2/LAYER2/nr_pdcp/nr_pdcp_entity.h

openair2/LAYER2/nr_pdcp/nr_pdcp_entity_drb_am.c

openair2/LAYER2/nr_pdcp/nr_pdcp_entity_drb_am.h

openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.c

openair2/LAYER2/nr_pdcp/nr_pdcp_ue_manager.c

openair2/LAYER2/nr_pdcp/nr_pdcp_ue_manager.h