Automatic merge from submit-queue (batch tested with PRs 60980, 61273, 60811, 61021, 61367). 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>.

prevent conformance test failure in DIND scenario

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

in the "ci-kubernetes-local-e2e" job, we are running local-up-cluster.sh
using DIND. We see failure for "HostPath should give a volume the
correct mode [Conformance]" test. The failure looks as follows:

linux mounts: path /tmp is mounted on / but it is not a shared or slave
mount


**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**:
https://github.com/kubernetes/kubernetes/issues/61058#issuecomment-372764783

**Release note**:

```release-note
NONE
```