Also added warning messages for gNB number of threads required

1.Changes to support multi slot parallel processing
2.Changes to run rfsimulator without multi-threading

dummy files cleanup

This reverts commit 85e1c34c.

This reverts commit 0280c083.

1. Changed FIFO types to threadsafe to ensure order of execution
2. Changed RB_NB_TH to 1 because PUCCH have some issues when running 2 slots in parallel (race). Dont know exactly where it happens.

Created separate job for PDSCH processing so that its exectued in the right order in rfsimulator mode.

MR !1054 : gNB_multi-threading_rework
-Replacing the existing multi-threading pipeline with threadPool library, simpler and more robust
-Updated dlsim to print stats to matlab file.
-Small fix for UE Ulsch coding.


MR !1063 : T_tracer__add_gnb_tracer
Minimalist gnb tracer to trace (for the moment) rxdataF when some decoding for PUCCH or PUSCH has been done

MR !1070 : nr_pdcp_improvements
Implement data transfer (38.331 5.2): - transmit operation (in nr_pdcp_entity_recv_sdu) - receive operation (in nr_pdcp_entity_recv_pdu) - t-Reordering expiration

MR !1076 : PBCHNRTCFIX
Issue Details: If bchPayload is changed to non-zero value, then the test case used to fail.
Solution: While final check against UE decoded bchpayload and input bchpayload, the AND operation with 0xff is missing along with RIGHT SHIFT operation for input bchpayload.


MR !973 : s1_subnormal
LTE update in S1 functions from Fujitsu.
-NNSF
-S1AP auto recovery.
-Handling unexpected messages.
-Fix memory leak.


MR !1048 : develop_SA_RA
-Draft and initial trigger of RA procedures upon SIB1 reception. 
-Improvements on SA SIB1 reception.
-Get Msg3 from RRC to MAC layer (this fixes random Msg3). 
-Fix Tables 7.4.1.1.2-1/2 from 38.211.

1. RX PBCH slot n
2. RX PDCCH slot n
3. Start TX PUSCH in parallel for slot n+6
4. RX PDSCH slot n
5. Join PUSCH
6. TX PUCCH slot n+6

when signal quality drops. when cmd line option used ue goes back to sync mode

CI: try to optimize the file system usage when building in the CI VM env. Increased the VM memory of one to allow linking
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

thread1: RX
thread2: TX

also harmonize configuration files some more

- FAPI structures not to be used as config_req at MAC since that FAPI is
  just for communication between MAC and PHY
- additional frame_type member added to the FAPI struct

- use LOG_D for debug logging

Fix nnsf selection.
Fix indentation and opening brace.

# Conflicts:
#	openair3/S1AP/s1ap_eNB.c
#	openair3/S1AP/s1ap_eNB_handlers.c