Automatic merge from submit-queue (batch tested with PRs 54997, 61869, 61816, 61909, 60525). 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>.

Improve api validation unit test coverage

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

Add UT for ValidatePodLogOptions and AccumulateUniqueHostPorts

Before

```
coverage: 60.0% of statements
ok  	k8s.io/kubernetes/pkg/api/v1/validation	0.058s
```

After:
```
coverage: 92.9% of statements
ok  	k8s.io/kubernetes/pkg/api/v1/validation	0.057s
```

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```