CI: use OC CN in aerial pipeline

Replace current docker deployment of OAI CN by deployment on OC. With change
of the CN, we also need to change the routing for UE module - change the
mbim script for controling the UE.

ci-scripts/conf_files/gnb-vnf.sa.band78.273prb.aerial.conf

@@ -188,7 +188,7 @@ gNBs =
 
 
     ////////// AMF parameters:
-    amf_ip_address = ({ ipv4 = "192.168.71.132"; });
+    amf_ip_address = ({ ipv4 = "172.21.6.103"; });
 
 
     NETWORK_INTERFACES :