Ensure expected load balancer is selected for Azure

Without this, the last element of LB list is always selected.

pkg/cloudprovider/providers/azure/azure_loadbalancer.go

@@ -199,7 +199,8 @@ func (az *Cloud) getServiceLoadBalancer(service *v1.Service, clusterName string,
 
 	// check if the service already has a load balancer
 	if existingLBs != nil {
-		for _, existingLB := range existingLBs {
+		for i := range existingLBs {
+			existingLB := existingLBs[i]
 			if strings.EqualFold(*existingLB.Name, defaultLBName) {
 				defaultLB = &existingLB
 			}