The Amarisoft root prompt contained '#' (as usual for root). However, to
integrate this into the UE management logic (cls_module_ue.py), we are
forced to use '$'. We changed the root command prompt to use '$', and
therefore change it here as well.

- there are extra variables in gnb_entrypoint.sh to resolve FQDN which
  are superfluous
- allowing nrue config to use gnb fqdn and ip-address
- rfsimulator parameter is not used in all docker-compose so it should be optional
- make amf ip-address optional

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>

This commit provides CSI reporting support
which is required for MIMO.  It also updates
the configuration files, provides sample BLER
simualtion files for packet dropping in the
MIMO 2x2 case. It also includes the hooks
and functions (e.g., updating UCI2_3_4 PDU field)
for MIMO 2x2 support. This commit will not include
any channel abstraction code or modelling.

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>

 * also removing the Copy_Image_to_Test method, useless now
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>