develop integration branch: 2019 week 27
The following Merge Requests are included:
- MR 612 : add channel simulation in RF simulator
- MR 624 : fix rfsim ue initial sync and legacy OAI C struct syntax
- MR 613 : Network-controlled HO (mostly FlexRAN)
- MR 622 : minor: fix parameters to T call for T_ENB_MASTER_TICK
- MR 623 : F1: correctly initialize CU RRC params
- MR 631 : hotfix: do not set s-Measure in measurement report configuration