Merge remote-tracking branch 'origin/nr_dl_ul_ptrs' into integration_2020_wk48_2

cmake_targets/autotests/test_case_list.xml

nfapi/open-nFAPI/nfapi/public_inc/fapi_nr_ue_interface.h

openair1/PHY/INIT/nr_init_ue.c

openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c

openair1/PHY/NR_ESTIMATION/nr_ul_estimation.h

openair1/PHY/NR_REFSIG/dmrs_nr.c

openair1/PHY/NR_REFSIG/dmrs_nr.h

openair1/PHY/NR_REFSIG/nr_gold_ue.c

openair1/PHY/NR_REFSIG/nr_refsig.h

openair1/PHY/NR_REFSIG/ptrs_nr.c

openair1/PHY/NR_REFSIG/ptrs_nr.h

openair1/PHY/NR_REFSIG/refsig_defs_ue.h

openair1/PHY/NR_TRANSPORT/nr_dlsch.c

openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c

openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c

openair1/PHY/NR_UE_ESTIMATION/nr_estimation.h

openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_decoding.c

openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_demodulation.c

openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h

openair1/PHY/NR_UE_TRANSPORT/nr_transport_ue.h