[Enhancement Request] Support for Linux ppc64 + ppc64le

[emilymcalister]

Describe the enhancement:

[Posting behalf of customer from original request raised here - https://github.com/elastic/ebpf/issues/205

Would it be possible to add in support for both the ppc64 and ppc64le arch types since both architectures seem to be supported by the underlying github.com/cilium/ebpf library.

I understand that Elastic doesn't support Beats/Agent on these architectures, the lack of support for these architectures in this module now means that we can no longer cross-compile any beats that includes ebpf functionality (and therefore Agent) for those architectures ourselves.

Describe a specific use case for the enhancement or feature:

[botelastic]

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