Automatic merge from submit-queue (batch tested with PRs 52240, 48145, 52220, 51698, 51777). 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>..

Add ipvs default sync period

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

If sync period <=0, it will cause kube-proxy panic, see: https://github.com/kubernetes/kubernetes/blob/master/pkg/proxy/ipvs/proxier.go#L728

That is, the input parameter for `time.NewTicker()` must be >0.

Unfortunately, current default value of sync period is 0.

**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
NONE
```