Develop Integration 2020 week 23

The following merge requests have been included:

* MR 823 : NR-UE Init sync bugfix
* MR 824 : code cleanup

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

This reverts commit cf5bc231.

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

This reverts commit 17a1a554.

Develop Integration Branch : 2020 week 22

The following Merge Requests are been included:

* MR 796 : Nr rrc configuration trx thread
* MR 807 : Use SCF FAPI for DMRS and PTRS also on UE side
* MR 817 : Fixing errored/missing circular dependency protection
* MR 819 : cleanup branch and initial ninja build support
* MR 820 : CI: Add OAI-CN-In-Docker support

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

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

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

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

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

Merge remote-tracking branch 'origin/add_oai_cn_docker_support_to_ci' into develop_integration_2020_w22

Merge remote-tracking branch 'origin/fix-circular-dependency-protection' into develop_integration_2020_w22

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

Conflicts:
	openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c

fixed issue related to scheduing of PRACH for long sequence (only gets done in last slot of subframe now, not both) and start point of DFT in RU processing for long-sequence. Removes fatal segfault.

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

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

Conflicts:
	ci-scripts/epc.py

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