Fix kelvin calls to MDS

Summary: this broke when i made my namespace changes. the kelvin's mds_addr flag is now only a part of the actual mds address. this should have been updated to use the fully constructed version above.

Test Plan: ran skaffold

Reviewers: vihang

Reviewed By: vihang

Differential Revision: https://phab.corp.pixielabs.ai/D8471

GitOrigin-RevId: f240bb9

src/vizier/services/agent/kelvin/kelvin_main.cc

@@ -121,7 +121,7 @@ int main(int argc, char** argv) {
       absl::Substitute("$0.$1.svc:$2", FLAGS_mds_addr, FLAGS_namespace, FLAGS_mds_port);
 
   auto manager = KelvinManager::Create(agent_id, FLAGS_pod_name, FLAGS_host_ip, addr,
-                                       FLAGS_rpc_port, FLAGS_nats_url, FLAGS_mds_addr)
+                                       FLAGS_rpc_port, FLAGS_nats_url, mds_addr)
                      .ConsumeValueOrDie();
 
   AgentTerminationHandler::set_manager(manager.get());