trx_usrp_stats can now be used to query the tx streamer for events (this function existed already but was not implemented). with this we can now query from the softmodem the error codes that UHD writes on the screen (U,L,O,S,...)

Integration develop nr 2019w50

See merge request oai/openairinterface5g!735

Merge remote-tracking branch 'origin/ru-parallel-beamforming-merge' into integration-develop-nr-2019w50

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Initial implementation.

nr_rlc/nr_rlc_oai_api.c will need some clean rewrite at some point.

More testing is also needed.

bug fix: ue was not reading options + more debug printf cleanup in openair1/PHY/NR_UE_TRANSPORT/dci_nr.c

Fix usrp_lib for threequarter sampling

See merge request oai/openairinterface5g!732

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

An avx2 instruction in idft4096 introduced segfault sometimes

Integration develop nr 2019w48bis

See merge request oai/openairinterface5g!729

Merge branch 'ru-parallel-beamforming-merge' of https://gitlab.eurecom.fr/oai/openairinterface5g into ru-parallel-beamforming-merge