Add scalable functions (SF) support

[ghost]

This patch adds support for scalable functions

(https://docs.nvidia.com/networking/display/bluefielddpuosv385/scalable+functions).

They are represented on the host as auxiliary devices.

In order to for the minimal codebase changes, this patch updated the sriovnet dependency, which already has support for SFs, together with its needed dependencies.

This patch also adds architecture detection to the Makefile.

What this PR does / why we need it: Add support for auxiliary devices.

Special notes for your reviewer: First time I contribute to ovs-cni. Apologies up front for any headaches 😄 .

Release note:

Support Scalable Functions

[kubevirt-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: naserdean Once this PR has been reviewed and has the lgtm label, please assign schseba for approval. For more information see the Kubernetes Code Review Process.

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[kubevirt-bot]

Hi @naserdean. Thanks for your PR.

I'm waiting for a k8snetworkplumbingwg 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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[phoracek]

Thanks for the contribution @naserdean! CC @SchSeba

[kubevirt-bot]

PR needs rebase.

Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes-sigs/prow](https://github.com/kubernetes-sigs/prow/issues/new?title=Prow%20issue:) repository.