add the dockerfile for ppc64le

[alongzhi]

This change is 

[k8s-ci-robot]

Hi @alongzhi. Thanks for your PR.

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[gaocegege]

Thanks for your contribution! 🎉 👍

Do you have plan to update the readme in the example?

[gaocegege]

/ok-to-test

[coveralls]

Coverage remained the same at 96.512% when pulling a7c80c6 on alongzhi:master into b96dcd7 on kubeflow:master.

[alongzhi]

Thanks for your contribution! 🎉 👍

Do you have plan to update the readme in the example?

@gaocegege Okay, I will update the readme for this as well. Thanks for your reviewing.

[alongzhi]

@gaocegege Hi, do you want me to continue updating readme in this PR, or open a new one?

[gaocegege]

@alongzhi Both LGTM, it's up to you

[alongzhi]

@gaocegege Okay, thanks. I will update it into a new one soon.

[gaocegege]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gaocegege

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