develop integration branch : 2020 week 41

* MR909 small-bugfixes-wk40 (Cedric Roux)
* MR919 docker and openshift initial 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>

This reverts commit 1a5874d4.

Various mutexes are present in the phy_stub_UE.c file. However, it will
only be run in a single thread; the multiple-thread implementation also
runs the higher layers concurrently, which leads to races and segfaults.
Therefore, remove these mutexes, as we don't need them.

also added a log message for DCI generation in MAC

changed uint8_t to void as return is not used in the calling function

this shouldn't affect the testing with cots ue

Created two dci_pdu's to hold dci configuration for UL and DL DCI.
This wasn't a problem before as only one DCI was scheduled.

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>

[OC][RHEL8]: updating dockerfiles w/ proper library management on target images + support for USRP build
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

* Standalone support on RHEL8.2 (without OpenShift build-config system)
* few ports for RHEL8.2 standalone podman/docker usage
* Supports eNB/gNB/LTE-UE/NR-UE
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>