Automatic merge from submit-queue
Hugetlbfs support based on empty dir volume plugin
**What this PR does / why we need it**: Support for huge pages in empty dir volume plugin. More information about hugepages can be found [here](https://www.kernel.org/doc/Documentation/vm/hugetlbpage.txt)
Feature track issue: kubernetes/features#275
**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
Support for Huge pages in empty_dir volume plugin
[Huge pages](https://www.kernel.org/doc/Documentation/vm/hugetlbpage.txt) can now be used with empty dir volume plugin.
```
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