because round 0 could be skipped if no pusch signal detected

Merge branch 'ulsch_decode_mthread' of https://gitlab.eurecom.fr/oai/openairinterface5g into ulsch_decode_mthread

Develop integration 2020 week 37

The following Merge Requests have been included:

* MR [878] : CI framework update for 5G NSA FR1 setup
* MR [885] : PTRS-based UL phase compensation

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

- Changed malloc to calloc to set all values to zero to remove the
  valgrind issue with uninitialized structure values in RC.gNB structure

Conflicts:
	openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
	openair1/PHY/NR_TRANSPORT/pucch_rx.c
	openair1/SIMULATION/NR_PHY/ulsim.c

Develop integration 2020 week 36

The following Merge Requests have been included:

* MR [877] : update conf2uedata
* MR [879] : Nr ul scheduling
* MR [880] : Cleanup usage of txdata array in NR UE threads
* MR [882] : Fixes for handling NR UE DCI decoding errors
* MR [884] : benetel: driver for Benetel's 4G and 5G RRUs
* MR [886] : NR UE fix get_Qm_dl and nr_get_code_rate_dl
* MR [887] : Usrp fix adc shift and pps sync