- NRF and AUSF configuration from fix to variable

- Added tzdata in ubuntu image TZ=Europe/Paris
- Added TZ in RHEL8.2 image
- Added two NF_REGISTRATION and SMF_SELECTION variables in conf

Signed-off-by: Mohammed Ismail <mohammed.ismail@openairinterface.org>

Signed-off-by: Mohammed Ismail <mohammed.ismail@openairinterface.org>

Bug fix on release mode and update on the scripts

See merge request oai/cn5g/oai-cn5g-amf!11

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

Signed-off-by: Mohammed Ismail <mohammed.ismail@openairinterface.org>

Signed-off-by: Mohammed Ismail <mohammed.ismail@openairinterface.org>

Added support for rhel8 image build

See merge request oai/cn5g/oai-cn5g-amf!9

Merge Nrf into develop

See merge request oai/cn5g/oai-cn5g-amf!10

# Conflicts:
#   src/amf-app/amf_n1.cpp
#   src/amf-app/amf_n11.cpp
#   src/amf-app/mysql_db.cpp
#   src/ngap/ngapMsgs/PduSessionResourceReleaseResponse.cpp

Signed-off-by: Mohammed Ismail <mohammed.ismail@openairinterface.org>

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