Fix for Issue #494: check and handle return value of openair0_device_load()  (develop branch)

See merge request oai/openairinterface5g!780

Fix l2 sim

See merge request oai/openairinterface5g!781

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

This functions fills the ULSCH CQI indication message incorrectly. Also,
it should only be triggered when the eNB requests CSI. We disable it
here and a subsequent commit enables it again.

As adding PTRS leads to shortening of the coded data, redudandency is removed and the performance decreases on a pure AWGN channel.
So PTRS should only be enabled if phase noise is present.

NAS triggered the Kenb Refresh Req always for (hardcoded) UE 0. This
fixes this by setting the correct UE ID.

An effect of this was that the Kenb would always be set for UE 0,
regardless for which UE it was actually intended. This led for integrity
check failures for every UE with ID > 0.

Develop integration 2020 week 08

The following Merge Requests have been included :

* MR771: Nr IP uplink traffic in noS1 mode
* MR772: Tools 5 gadapt
* MR773: Using "--allow-unauthenticated" with apt-get disables package verification,...
* MR776: Docupdate( MR 772)

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

Merge branch 'develop_integration_w08' of https://gitlab.eurecom.fr/oai/openairinterface5g into develop_integration_w08

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

    also added the UL test for 5G-RF-SIM
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Using "--allow-unauthenticated" with apt-get disables package verification, allowing to install untrusted/modified packages into the development system. Fixed calls to apt-get to make sure that packages are verified.