Automatic merge from submit-queue (batch tested with PRs 46112, 46764, 46727, 46974, 46968)

Add controllerrevisions as valid resource in kubectl help

**What this PR does / why we need it**:

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**: controllerrevisions is a new resource added in 1.7 @kubernetes/sig-cli-maintainers 

**Release note**:

```release-note
```