Fix target group instances registration when TG created

In case of creating a new TG removed return dropped off this function
just before instance registration code. Daemon restart was needed to
call ensureTargetGroup() again and reach out registration code
(as targetGroup != nil, TG already created)

Change-Id: I57717602624d9632049596e6928ac4671387905d

pkg/providers/v1/aws_loadbalancer.go

@@ -618,8 +618,7 @@ func (c *Cloud) ensureTargetGroup(targetGroup *elbv2.TargetGroup, serviceName ty
 			return nil, fmt.Errorf("expected only one target group on CreateTargetGroup, got %d groups", len(result.TargetGroups))
 		}
 
-		tg := result.TargetGroups[0]
-		return tg, nil
+		targetGroup = result.TargetGroups[0]
 	}
 
 	// handle instances in service