Add ppc64le and s390x support for Binaries/Images for envoy-openssl

[Swapnali911]

Reference #221

Request:
Please add P&Z binaries/images to the releases page at https://github.com/envoyproxy/envoy-openssl/releases alongside x86 binaries.

Benefit:
Including P&Z binaries/images will improve accessibility for users on these platforms and ensure better support for a wider range of architectures.

Dependency : knative/infra#344

Creating issue under envoy to get help/inputs from envoy community

cc : @rishikakedia @valen-mascarenhas14 @dilipgb

[phlax]

@Swapnali911 im afraid i have no idea what "P&Z" refers to - can you elaborate?

[Swapnali911]

@phlax here P&Z refer to IBM ppc64le and s390x platforms. Sorry for the confusion.

[phlax]

k - so iiuc this relates to s390x binaries

Envoy as a project doesnt support s390x so we are unlikely to add release binaries for this format.

We are however willing to accomodate and help where we can with downstream projects - so i would suggest setting up a downstream to handle these releases

cc @namrata-ibm

[phlax]

also realizing these require openssl support so would be downstream of that project also cc @tedjpoole @jwendell

[Swapnali911]

Looks like knative/infra#344 is closed and they have moved to the downstream. So this requirement no longer required. Hence closing the issue.

Thanks @phlax for your inputs