NR UE capabilities

Capabilities for OAI UE from xml file (for now copy-pasted from a COTS UE, to be modified in the framework of harmonization of RRC configuration at gNB).

For phy-test and do-ra mode, the gNB directly reads the xml file.

openair2/RRC/NR/rrc_gNB_nsa.c

@@ -161,6 +161,8 @@ void rrc_add_nsa_user(gNB_RRC_INST *rrc,struct rrc_gNB_ue_context_s *ue_context_
         xer_fprint(stdout,&asn_DEF_NR_UE_NR_Capability,(void *)UE_Capability_nr);
       }
     }
+    else
+      LOG_E(NR_RRC,"Could not open UE Capabilities input file. Not handling OAI UE Capabilities.\n");
     ue_context_p->ue_context.UE_Capability_nr = UE_Capability_nr;
   }