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

Conflicts:
	openair1/SCHED_NR/phy_procedures_nr_gNB.c
	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c