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

- bad values in asn1_utils.c (copy/paste from 4g)
- remove hardcoded values (t_reassembly, sn_field_length)
- some cleanup

-Schedule IP traffic when it is available and random data when there is no IP traffic

 Conflicts:
	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c

c_SRS was 61, which does not fit for 106 PRBs as it seems. Value 0 works.
Maybe not the right thing to do though (see 38.211 6.4.1.4.3,
table 6.4.1.4.3-1).

Also it seems necessary to pass desired LTE/NR bands when requesting
LTE UE capabilities. Today this is hardcoded, to be done better at
some point. We should get the bands from the eNB configuration and
the eNB/gNB X2 exchanges.

Also fixed bugs in ulsim and dlsim harq tests

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