Update k8s-install-etcd-operator.rst

The docs may not up-to-date "Add cilium-operator;  Change etcd-xxx to cilium-etcd-xxx".
    
Signed-off-by: John Zheng <john.zheng@hp.com>

Documentation/gettingstarted/k8s-install-etcd-operator.rst

@@ -98,9 +98,10 @@ Troubleshooting
 
    * ``kube-dns`` or ``coredns``
    * ``cilium-xxx``
+   * ``cilium-operator-xxx``
    * ``cilium-etcd-operator``
    * ``etcd-operator``
-   * ``etcd-xxx``
+   * ``cilium-etcd-xxx``
 
    All timeouts are configured that this will typically work out smoothly even
    if some of the pods restart once or twice. In case any of the above pods get