Add SystemCallFilter support for ppc64le and s390x

[yselkowitz]

IBM would like to see this backported to upstream-supported stable branch(es) as well.

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[rjernst]

While we have received similar PRs in the past (eg #42901), we feel strongly that we should not add any code, however minor, towards claiming support for platforms or features we cannot test against or support. Thank you for the PR, but we do not plan to merge this commit, so I hope you don't mind that I close this.

[james-crowley]

@yselkowitz The PR @rjernst linked has some really good information and a little more explanation on why this PR got closed.

Ideally, I would also like to see support for s390x and ppc64le for Elasticsearch! Especial after what @nealef mentioned with Redhat adding support for s390x and ppc64le on OpenShift.

@yselkowitz Feel free to reach out to me internally to talk more(email on my profile).

[nealef]

I also have updates for go-seccomp-bpf to enable s390x there as well.