add log

Author: GaOrtiga

server/src/main/java/com/cloud/api/ApiResponseHelper.java

@@ -2494,6 +2494,7 @@ public NetworkResponse createNetworkResponse(ResponseView view, Network network)
                     _accountMgr.checkAccess(CallContext.current().getCallingAccount(), null, false, vpc);
                     response.setVpcId(vpc.getUuid());
                 } catch (PermissionDeniedException e){
+                    s_logger.debug("Not setting the vpcId to the response because the caller does not have access to the VPC");
                 }
                 response.setVpcName(vpc.getName());
             }