Merge remote-tracking branch 'origin/flexran_agent_rrc_cm_rebased2' into develop_integration_2019_w27

Flexran-triggered RRC Reconf: free memory of mac_MainConfig after setting new, do not free new memory

To be tested: Add code for measurement report based on the neighbouring cells after x2 setup, ocs/ocn for multiple cells

Create RRC struct and getters for Periodic, A1-A5 event and offsets related to RRC Measurement Report

fixes: segmentation faults issues in RRC CM for RRC Measurement report, clean-up and re-implementation of functions in RAN API

Develop: Integration 2019 Week 25

See merge request oai/openairinterface5g!617

The following Merge Requests are included:

* MR 576 : Multi-RU support and OTA Synch/Calibration for TDD
* MR 589 : UE side FeMBMS-EnTV
* MR 610 : Enhance CI with external EPC usage
* MR 614 : fixed rar_Hopping configuration for eMT
* MR 619 : bugfix: fix RRC UE removal
* MR 620 : Coverity Scan defect fixes

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>

Merge remote-tracking branch 'origin/434-coverity-scan-fix-week25' into develop_integration_2019_w25

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

Remove Coverity Scan CID 261519 (Using uninitialized value tmp. Field tmp.elems is uninitialized when calling _mm256_insert_epi16.)

Remove Coverity Scan CID 261470 (Using uninitialized value tmp. Field tmp.elems is uninitialized when calling _mm256_insert_epi8.)