validation: test with different test cases for hugetlb cgroups
validation: test with different test cases for hugetlb cgroups

Test if hugetlb cgroups tests work correctly, with different page size values.
Also test if the test fails with an error when creating a hugetlb cgroup
with a wrong page size like 3GB. Make it also print out correct TAP output.

Signed-off-by: Dongsu Park <696fb7639d678a1e692fa501217d7509545d7331@kinvolk.io>

opencontainers/ocitools,opencontainers/runtime-tools,opencontainers/ocitools,opencontainers/runtime-tools