Automatic merge from submit-queue (batch tested with PRs 66136, 64999, 65425, 66120, 66074). 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>.
kubeadm: Printable default component configs
**What this PR does / why we need it**:
This PR makes default component configs printable via `kubeadm config print-default`.
Component configs are not printed by default. You have to explicitly request
that for concrete API objects via the `--api-objects` command line parameter.
For a list of possible API objects use the help option.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Refs kubernetes/kubeadm#963
**Special notes for your reviewer**:
/cc @kubernetes/sig-cluster-lifecycle-pr-reviews
/area kubeadm
/assign @luxas
/assign @timothysc
/kind feature
**Release note**:
```release-note
kubeadm: Default component configs are printable via kubeadm config print-default
```
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