Merge remote-tracking branch 'origin/356-compilation-fail-for-256-ue' into develop_integration_2018_w_41

Introduction of S1-flex. It handles multiple PLMN IDs (up to 6) in the SIB as well as the selection of an MME based on the selected PLMN identity.

Major impact: changes on the eNB configuration files:

tracking_area_code = 1;

plmn_list = (
  { mcc = 208; mnc = 94; mnc_length = 2; },
  { mcc = 208; mnc = 95; mnc_length = 2; }
)

See https://gitlab.eurecom.fr/oai/openairinterface5g/wikis/s1-flex-conf-nnsf for more details.
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>

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

Develop integration 2018 w40

See merge request oai/openairinterface5g!407

    also at eNB init, no sync will result into an error
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>

Develop integration 2018 w39

See merge request oai/openairinterface5g!405

initialization of 7.5 kHz tables moved to RU initialization so that IF4p5 RRU doesn't crash anymore.

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>