nr-ip-over-LTE: Resolved issue with duplicate IP packet at the receiver UE IP interface and packet losses are reduced. Remaining to identify why occasionally IP packets are received at the PDCP stack later than the time slot of their arrival at PHY/MAC. Introduced some debug logs, to be removed later.

nr-ip-over-LTE: Small fixes, now IP traffic is received at the IP interface of the UE but there are many packet losses and occasionally there are duplicate ping requests received, leading to UE crashing

nr-ip-over-LTE: Modification to support both use cases: DLSCH phy-test scheduling (random data generation in every opportunity) AND DLSCH scheduling only when there is IP traffic arriving through the LTE stack (noS1 mode)

- Setting the payload to random data instead of all zeros at the Tx side

- Handling "nb_symb_sch" equal to 0 in "phy_procedures_nrUE_RX" which prevents
  entering "nr_ue_pdsch_procedures"

- Handling symbol loop problem in "nr_ue_pdsch_procedures"

- Handling resource block loop problem in "nr_rx_pdsch"

Added Rx indication for DLSCH type and resolved issue with MIB decoding while sending DL IP traffic. Data packets still not parsed properly at the UE MAC layer.

Alldownlink IP traffic is transferred consistently from the gNB to the PHY of the UE now based on testing with the RFSIMULATOR. Slight extension in FAPI interface required to move the received data to the MAC layer of the UE.

testing merge with develop-nr. removal of pthread_mutex_timedlock, we were using the wrong time argument (needed to be absolute).

Downlink IP traffic flow using LTE RAN stack over NR-PHY. Downlink traffic reaching PHY of gNB now using the noS1 mode. Extensions required for the reception through the LTE RAN stack at the UE side.

Final --phy_simulators warning removals for this branch, and former polar coding function corrections

changed name of function initial pdcch scheduling parameters. Currently we set the BWP information to be the full bandwidth of the NR cell. This should be changed to include the CellGroupConfigCommon initial BWP information either from SIB or from LTE RRC.

DCI still not updated to start from MSB. Will be in next commit

BWP information in NFAPI gNB/UE
dci encoding / decoding integrated
DCI decoding still fails