1. Avoid using fill_masterCellGroup() function, during reestablishment.
2. Send the existing CellGroupConfig, instead of calling fill_masterCellGroup().

Fill the right DRBs for Master Cell Group Config and drop the bearer_id_start, nb_bearers_to_setup

integration_2023_w18b

See merge request oai/openairinterface5g!2095

* !1879 NR RRC config improvements for multi UE scenario
* !2070 Use F1 internally: UE Context Setup
* !2073 Fix reconfigurationWithSync
* !2086 F1 Setup Request DUname is optional
* !2062 remove pdu session duplicated structs
* !2066 NR UE rework RRC MAC config
* !2075 bugfix in computing CCEs for DCI
* !2089 chore(build): adding docker support for rocky-linux
* !2091 Removal of "disableConcurrentBuilds" option from jenkinsfiles
* !2093 Modification of documentation for CI testbenches

Contributions by Robert Schmidt <robert.schmidt@openairinterface.org>

Merge remote-tracking branch 'origin/NR_RRC_config_improvements_multi_UE' into integration_2023_w18b

- RAN-SA-AW2S-CN5G pipeline image - one antenna added to Amarisoft UE simulator, modification of the label
- resize of the images used in RAN-SA-AW2S-CN5G pipeline image
- change of the description for RAN-SA-AW2S-CN5G pipeline
- change of the description for RAN-LTE-TDD-2x2-Container pipeline, where nrmodule2 is used
- typo correction

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

- modification of jenkinfiles in order to enable parallel execution of the pipelines

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

Different threads (e.g., RRC, DU tasks) might access the scheduler at
the same time as the thread that drivers the scheduler itself
(ru_thread). To avoid data races, introduce this mutex.

Most functions of the scheduler are only used internally and have been
marked static in the previous commit. The remaining ones, in this
commit, either lock the scheduler mutex sched_lock, or a comment has
been added of the assumption of how such function is to be locked (e.g.,
if it might be called from different places, or if it is called by a
function that already locks the scheduler).