Add supported k8s versions to istio status (#8412)
Add supported k8s versions to istio status (#8412)

* Add supported k8s versions to istio status

* Added 1.8 and fixed supported k8s versions
istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io