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.)

Remove Coverity Scan CID 60471 (Function memory_read does not terminate string *user->nas_user_nvdata.)

Remove Coverity Scan CID 60241 (Passing &eplmn to function emm_proc_attach_accept which uses it as an array. This might corrupt or misinterpret adjacent memory locations.)

If several UEs are removed, the variable ue_to_be_removed may be overwritten.
Let's use an array instead.

Fix Coverity Scan CID 339954 (Overrunning callee's array of size 16 by passing argument ue_id (which evaluates to 65535) in call to flexran_set_ue_ul_slice_idx.)

Fix Coverity Scan CID 339964 (Passing &rrc_eNB_mui to function rrc_eNB_process_S1AP_DOWNLINK_NAS which uses it as an array. This might corrupt or misinterpret adjacent memory locations.)

Fix Coverity Scan CID 339974 (Overrunning array eutra_bandtable of 48 24-byte elements at element index 48 (byte offset 1152) using index i (which evaluates to 48).)

Fix Coverity Scan CID 340004 (Overrunning array eutra_bandtable of 48 24-byte elements at element index 48 (byte offset 1152) using index i (which evaluates to 48).)

Fix Coverity Scan CID 340209 (Variable message_p going out of scope leaks the storage it points to.)

Fix Coverity Scan CID 340211 (Variable message_p going out of scope leaks the storage it points to.)

Fix Coverity Scan CID 340232 (Variable message_p going out of scope leaks the storage it points to.)

Fix Coverity Scan CID 340235 (Using variable UE_id_mac as an index to array RC.mac[ctxt_pP->module_id]->UE_list.UE_sched_ctrl.)

Fix Coverity Scan CID 340243 (Overrunning array of 1 bytes at byte offset 1 by dereferencing pointer ie->value.choice.UESecurityCapabilities.encryptionAlgorithms.buf + 1.)

Fix Coverity Scan CID 340247 (Variable pc5s_header going out of scope leaks the storage it points to.)

Fix Coverity Scan CID 340261 (Variable securityConfigHO going out of scope leaks the storage it points to.)

Fix Coverity Scan CID 340263 (Using uninitialized value DRB2LCHAN[i] when calling rrc_mac_config_req_eNB.)

Fix Coverity Scan CID 340268 (Passing freed pointer pdu_mem_pP as an argument to rlc_um_store_pdu_in_dar_buffer.)

Fix Coverity Scan CID 340277 (Variable gNB_CUSystemInformation going out of scope leaks the storage it points to.)

Fix Coverity Scan CID 340278 (Variable quantityConfig going out of scope leaks the storage it points to.)

Fix Coverity Scan CID 21666 (Variable measResultListEUTRA2 going out of scope leaks the storage it points to.)