This reverts commit fe6130c8, reversing
changes made to 2406662e.

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

- changed Mdlharq to Mlimit when comparing with the round number
- Not incrementing the HARQ round in case of err_flag = 1, until HARQ is implemented
- Changed MAX_LDPC_ITERATIONS to 5 from 4 (provided better performance)

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.

 - dci_request and dl_indication for PBCH now also on stack
 - fixed type of nrUE_config (was using structure for gNB before)
 - added configuration of PBCH to phy_config_request and using this config now in phy_procedures_nr_ue
 - we need to add configuration of PDCCH and PDSCH also to phy_config_request (there are still some hardcoded parameters)
 - removed UL scheduling for now

--phy_simulators warning removals, except for nr_dlsim. Polar coding old implementation's approximation and a priori information options needs to be corrected or removed

On the gNB side tha data are first rate-matched and then interleaved.
So on the UE side, the received LLRs have to be deinterleaved first before rate-matching.

This significantly improved the performance, especially for MCS values > 3.