Add s390x support again

[madeelibm]

thin-provisioning-tools package is now available in Alpine Linux. We have tested and added it in latest, 3.19 and 3.18 releases.

[k8s-ci-robot]

Hi @madeelibm. Thanks for your PR.

I'm waiting for a google member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[madeelibm]

Can someone help to merge this PR?

[mrunalp]

Looks fine. I have kicked off the tests.

[rphillips]

The failed test is a package manager flake.

LGTM as well.

[haircommander]

@iwankgb @bobbypage PTAL

[madeelibm]

/retest

[k8s-ci-robot]

@madeelibm: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/retest

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[iwankgb]

@madeelibm merge master, please

[iwankgb]

/ok-to-test