Merge branch 'nr-rrc-additions' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr-rrc-additions

-Amend do_ServingCellConfigCommon function

Merge branch 'nr-rrc-additions' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr-rrc-additions

"implicit declaration of function"
"incompatible pointer type'

Merge branch 'nr-rrc-additions' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr-rrc-additions

- Create PDCCH structre in FAPI, it will be one of P7 structure
- Maintain Configuration Module

- It coulde be build, but there are "implicit declaration of function" warnings in MAC layer.
  Since we re-use the MAC layer function.
- Maybe it is already could be test for configuration module.

implement rrc list module, declair in rrc_inst and initialization, finish part of l12 FAPI messages, DCI0, DCI1, DCI2 and UCI, part of DCI_IND messages

- Create task for GAB_APP and GAN_RRC
- Create the NR FAPI for P5 interface
- *It could be build, but still have a lot of warning need to maintain