This reverts commit 29268d0a.

This reverts commit 96554bef

fix the race condition in UE where PUSCH could not be sent when UE sends PUCCH and PUSCH at the same slot.

Our proxy_testscript.py expects these specific log messages to be
logged as LOG_A

- the param was hardcoded to 12 at gNB side
  while it was computed at UE side
- the same function used at UE side has been moved to the common file
- now the computation at gNB side is consistent with the UE

- updating to NR_MAC tag
- minor cleanups
- added more relavant info for debugging purposes

- removed calls to the TDD UL/DL configuration common in FDD mode
- bugfix in the generation of prach info from index
- initial adaptation of gNB schedulers
- adapted PUCCH ack/nack scheduling by taking into account 6 slots min
  delay in FDD mode (to be integrated with latest development of PUCCH)
- made the use of nr_slots_per_frame more consistent

In this commit, we changed the stub function of the NRUE
to handle the MIB and SIB1, which arrive in a single
DL_TTI_REQ. If we have not received the MIB, we first
call the scheduler, then we handle any received NFAPI
messages. The NFAPI message handler will then call
the nr_ue_dl_indication() again, which will process
first the MIB, then SIB1. It seems that we are not
properly sending the SIB1 response back to the gNB so
the NRUE eventually crashes. We are however, properly
decoding the MIB and SIB which is a step in the right
direction!