Kubernetes release v1.11.3

Based on https://github.com/kubernetes/kubernetes/releases/tag/v1.11.3
Merge pull request #67754 from sttts/automated-cherry-pick-of-#67169-upstream-release-1.11

Automatic merge from submit-queue.

Automated cherry pick of #67169: Fix Proto Generator to not assign types to packages they don't belong to

This produces correct protobuf dependencies. Without, everybody basing custom types onto k8s.io/api and who uses protobuf, will run into arbitrary dependencies on apiextensions-apiserver and others.

```release-note
Fix protobuf dependencies in k8s.io/api.
```

Kubernetes-commit: f58f1bd657b67f725ced7c7520d531a421860e5a