Use a "future" UL_tti_req structure to save in between scheduling and
reception slots. Should also work for FDD.

MR968: Bugfix nr ldpc size typo
- fix the copy of the decoded data bytes at the end of the processing of an LDPC segment 
 
MR962: Remove x2 gnb hardcoding
- Removes hardcoding of some x2 configuration parameters used in ENDC setup request message at gNB side  

MR949: rlc v2: change time keeping
- RLC has timers. We need to keep track of time. 
We introduce rlc_tick() and call it in eNB_dlsch_ulsch_scheduler, which is called every subframe, both in FDD and TDD.

MR945 : nr prach fr2
- Introduction of the PRACH frontend for FR2 (120kHz SCS, 32 and 66 PRB). 
- Tested with nr_prachsim and testcases added to test_case_list.xml also included some fixes for FR1, 
when prach occasion > 0 (small difference in Ncp)

MR950 : DL and UL PTRS for 5G NR

MR971 : Correct NDI + Minor MAC subPDU handling improvements
Fixes the issue : Ping in develop was unusually high (70+ms). The issue was that TA was scheduled in the second slot (of the two we currently schedule), but NDI was toggled for the first one. 
Other improvements:
- Correctly put padding MAC subPDU
- Only use subPDU DLSCH long header if length >= 256B
- Calculate TBS in DL pre-processor considering header and TA CE overhead.
- Improve some of the logging (LOG_D)
- re-enable TA

MR970 : uci gnb mac functions file
- Moved gNB MAC UCI related functions in a new file

MR972 : Bugfix nr rate matching assertion
- Fixes the assertion happening in rate matching of pdsch during iperf test.

MR975 : File openning in rrc_gNB_internal
- Only allow file opening in rrc_gNB-internal.c in phytest mode

MR977 : NR UE DCI sanity checks and fixes
These changes resolve a few stability issues and errors in NR UE
- Added sanity check for pucch_resource_indicator received in DL DCI, which resolves SEGV in select_pucch_resource() and check_pucch_format()
- Additional sanity checks included to catch false or erroneous DCI received
- Wrong MCS table calculation and error in accessing ul_config_request at UE resolved

This is messy, sorry. I don't have time to cleanup
cmake_targets/CMakeLists.txt.