RLC has timers. We need to keep track of time. We chose to not use
realtime but 'processing time'. That is we send a tick to RLC for every
subframe when it is processed by the softmodem. Before this commit we
used to increase time in the function mac_rlc_status_ind which is called
for every subframe in the eNB, but not in the gNB (at least not in the
current gNB). So we need another way to keep track of time.

The function gNB_dlsch_ulsch_scheduler is called for every slot. It seems
to be the perfect candidate to send a tick to RLC for every subframe. We
take care of subcarrier spacing to send every subframe (one subframe is
always 1ms), not every slot (slot duration depends on subcarrier spacing).

It may not be the best solution. To be revised if needed.

Note: the UE has not been fixed. Some modification is needed for the UE
too, most probably.

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

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

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

I had to remove the Msg2 transmission in phytest mode, which was present in branch 'benetel_integration'.
This caused following assertion:

Assertion (Foffset <= Ncb) failed!
In nr_rate_matching_ldpc() /home/sli/sudas-demonstrator/openair1/PHY/CODING/nr_rate_matching.c:411
Foffset 6492 > Ncb 924

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