NGAP: read correct PDU session NSSAI

The allowed NSSAIs is NOT the NSSAI to be used for a UE. Fix it to use
the correct one.

openair2/RRC/NR/rrc_gNB_NGAP.c

@@ -788,9 +788,7 @@ void rrc_gNB_process_NGAP_PDUSESSION_SETUP_REQ(MessageDef *msg_p, instance_t ins
     pdu_session_to_setup_t *pdu = bearer_req.pduSession + bearer_req.numPDUSessions;
     bearer_req.numPDUSessions++;
     pdu->sessionId = session->pdusession_id;
-    nssai_t *nssai = &msg->allowed_nssai[i];
-    pdu->nssai.sst = nssai->sst;
-    pdu->nssai.sd = nssai->sd;
+    pdu->nssai = msg->pdusession_setup_params[i].nssai;
     if (cuup_nssai.sst == 0)
       cuup_nssai = pdu->nssai; /* for CU-UP selection below */
     pdu->integrityProtectionIndication = rrc->security.do_drb_integrity ? E1AP_IntegrityProtectionIndication_required : E1AP_IntegrityProtectionIndication_not_needed;