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

- replaced nr_slot_t with int as it was barely used in the code (also is defined after an lte struct)
- removed use of phy_frame_config_nr from the UE (another file was created in SCHED_NR_UE, still the
  gNB file is used in some tests file at UE side)

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

testing for pucch format 2, 3-11 bits. Configuration works for 2 PRBs, 1 symbol only. Assertion in gNB RX otherwise.

This commit introduces an alternative RLC implementation
based on 36.322 version 8. AM and UM done, TM not done.

See openair2/LAYER2/rlc_v2/TODO for missing parts.

ENDC S1-U gNB support: Separate some GTP functions between eNB and gNB. Downlink traffic from SGW arrives properly at gNB now after path switch