The [ClearRealmCache API](https://www.elastic.co/guide/en/elasticsearch/reference/current/security-api-clear-cache.html) evicts users from caching realms. It should also clear the [lastSuccessfulAuthCache](https://github.com/elastic/elasticsearch/blob/fcfb04392cfdf6f3ae35587ce0f4ed6522cef05a/x-pack/plugin/security/src/main/java/org/elasticsearch/xpack/security/authc/AuthenticationService.java#L97) in the process. 

But it fails to do that if the realm is specified as a wildcard, i.e. the following request clear all realm caches, but not the lastSuccessfulAuthCache ([relevant code](https://github.com/elastic/elasticsearch/blob/fcfb04392cfdf6f3ae35587ce0f4ed6522cef05a/x-pack/plugin/security/src/main/java/org/elasticsearch/xpack/security/action/realm/TransportClearRealmCacheAction.java#L85-L90)):

```
POST _security/realm/*/_clear_cache
```

But it does clear lastSuccessfulAuthCache if concrete realm name is specified, e.g. the following request clear both the reserved realm cache and the lastSuccessfulAuthCache ([relevant code](https://github.com/elastic/elasticsearch/blob/fcfb04392cfdf6f3ae35587ce0f4ed6522cef05a/x-pack/plugin/security/src/main/java/org/elasticsearch/xpack/security/action/realm/TransportClearRealmCacheAction.java#L92-L100)):

```
POST _security/realm/reserved/_clear_cache
```

#### Steps to reproduce the issue
1. Enable both file and native realm on a node and make sure file is before native in the realm chain
2. Create a native user `foo` and authenticate with it.
3. Add a file user `foo` with the same password and wait for the node to auto-load the file
4. Clear realm cache with `POST _security/realm/*/_clear_cache`
5. Authenticate with `foo`, but the realm is still `native` (_incorrect behaviour_)
6. Clear the realm cache with `POST _security/realm/reserved/_clear_cache`
7. Authenticate with `foo`, this time the realm is `file` (_correct behaviour_)

x-pack/plugin/security/src/main/java/org/elasticsearch/xpack/security/action/realm/TransportClearRealmCacheAction.java
ClearRealmCacheRequest,
    ClearRealmCacheResponse,
    ClearRealmCacheRequest.Node,
    ClearRealmCacheResponse.Node> {
    private final Realms realms;
    private final AuthenticationService authenticationService;
    @Inject
    public TransportClearRealmCacheAction(
        ThreadPool threadPool,
        ClusterService clusterService,
        TransportService transportService,
        ActionFilters actionFilters,
        Realms realms,
        AuthenticationService authenticationService
    ) {
        super(
            ClearRealmCacheAction.NAME,
            threadPool,
            clusterService,
            transportService,
            actionFilters,
            ClearRealmCacheRequest::new,
            ClearRealmCacheRequest.Node::new,
            ThreadPool.Names.MANAGEMENT,
            ClearRealmCacheResponse.Node.class
        );
        this.realms = realms;
        this.authenticationService = authenticationService;
    }
    @Override