Automatic merge from submit-queue (batch tested with PRs 54987, 55221, 54099, 55144, 54215). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

extracted elasticsearch-logging service name as environment variable

**What this PR does / why we need it**:
Deploying the cluster-addon fluentd-elasticsearch with customized resource definitions can cause elasticsearch discovery to fail because the service name `elasticsearch-logging` is hard-coded in  cluster/addons/fluentd-elasticsearch/es-image/elasticsearch_logging_discovery.go

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
-> none yet

**Special notes for your reviewer**:
The name of the  environment variable is ELASTICSEARCH_SERVICE_NAME. When non is given the fallback service-name  fallback is  `elasticsearch-logging`

```release-note
[fluentd-elasticsearch addon] Elasticsearch service name can be overridden via env variable ELASTICSEARCH_SERVICE_NAME
```