Fix RFSIMULATOR issues (gNB side) after merge of NR_test_S1U_RRC_PRACH_procedures into NR_RRC_PRACH_procedures

Revert "ENDC path switch S1-U: Bugfixes at eNB side. Problem at S1AP E-RAB-Modification-Indication message encoding to be resolved"

This reverts commit f895c4d9.

This reverts commit 1462f0e6.

Merge branch 'NR_RRC_PRACH_procedures' of https://gitlab.eurecom.fr/oai/openairinterface5g into NR_RRC_PRACH_procedures

ENDC path switch procedures: E-RAB Modification Confirm message successfully received at the eNB from the MME now

- now the FAPI interface copies the struct directly to NR_UE_PRACH
- NR_PRACH_CONFIG_COMMON and NR_PRACH_CONFIG_INFO have been removed from FP

- ULSCH is temporary disabled

- now the function gets more input arguments but can be used from both UE and gNB
- this change was needed because the prach fapi of UE differs from the gNB one

ENDC path switch procedures: Remove some IEs from E-RAB Modification Indication message which finally appear to be not mandatory

Merge branch 'NR_RRC_PRACH_procedures' of https://gitlab.eurecom.fr/oai/openairinterface5g into NR_RRC_PRACH_procedures

Merge branch 'NR_RRC_PRACH_procedures' of https://gitlab.eurecom.fr/oai/openairinterface5g into NR_RRC_PRACH_procedures

ENDC path switch procedures: Small modification at generation of E-RAB Modification Indication message