Automatic merge from submit-queue. 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>.

Upload container runtime log to sd/es.

I've verified this in my environment. My stackdriver has an extra `container-runtime` entry for node log, and it collects container runtime daemon log correctly.

@yujuhong @feiskyer @crassirostris @piosz 
@kubernetes/sig-node-pr-reviews @kubernetes/sig-instrumentation-pr-reviews 
Signed-off-by: Lantao Liu <lantaol@google.com>

**Release note**:

```release-note
Container runtime daemon (e.g. dockerd) logs in GCE cluster will be uploaded to stackdriver and elasticsearch with tag `container-runtime`
```