Description of problem:

The Load Balancers for LB type svs are created sequentially, meaning that if 10 LB type services are created in parallel and each LB takes 2 min to be created, the last LB will be created after 20 min.

That makes some openshift/origin LoadBalancers tests fail when executed in parallel

Version-Release number of selected component (if applicable):
4.9.0-0.nightly-2021-09-27-105859

How reproducible: always

Steps to Reproduce:
1. Deploy OCP
2. Create 10 LB type svcs:
for i in `seq 1 10`;
do echo $i;
oc new-project test$i-ns;
oc create deployment test$i-dep --image=quay.io/kuryr/demo;
oc scale deployments/test$i-dep --replicas=2;
oc expose deployment test$i-dep --name test$i-svc --type=LoadBalancer --port 80 --target-port=8080;
done
3. Wait until LBs are created