replacing phy_test local variable from nr_dlsim.c and nr_ulsim.c with get_softmodem_params()->phy_test

     align folder structure in README w/ 5G-NR new folders
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Merge branch 'NR_RRCConfiguration' of https://gitlab.eurecom.fr/oai/openairinterface5g into NR_RRCConfiguration

Initial sync not happening fot FR2

 -- fromdos was to be called from python executor and not from ADB server
 -- doing a power-cycle on CAT-M module at start of test
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

2 issues at this point:
1.rfsim for FR1 works sometimes. other times 100 consec PBCH errors.(this commit)
2.PDCCH and PDSCH are not transmitted in correct slots. problem might be with sf_ahead.

See merge request oai/openairinterface5g!769

The following Merge Requests have been included :

* MR 767: fix compilation error for Lime driver
* MR 768: Softmodem cleanup

fixed a bug in UE

Merge softmodem_cleanup (MR768) and  fix-limeSDR-compile (MR767) into a third branch before creating a new MR (limedrv-sftmdmclean to develop)

Merge branch 'NR_RRCConfiguration' of https://gitlab.eurecom.fr/oai/openairinterface5g into NR_RRCConfiguration

Merge branch 'NR_RRCConfiguration' of https://gitlab.eurecom.fr/oai/openairinterface5g into NR_RRCConfiguration