Automatic merge from submit-queue

Update the description to match function

The description of NewReplicaSetController() does not match
its function, and the description of NewDeploymentController()
does not match its function. Let's update their descriptions.



**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**:

**Release note**:

```release-note
```