[DRAFT] Nvidia Settings API changes

[monirul]

Issue number:

Closes #

Description of changes: This PR introduces new settings API for Nvidia GPUs for Kubernetes Nvidia variants.

New settings are

Bottlerocket Settings	Impact	Value
settings.nvidia-container-runtime.visible-devices-as-volume-mounts	allows to change the  accept-nvidia-visible-devices-as-volume-mounts value for k8s container-toolkit	true | false default: true
settings.nvidia-container-runtime.visible-devices-envvar-when-unprivileged	allows to set value of  accept-nvidia-visible-devices-envvar-when-unprivileged settings of nvidia container runtime for k8s varient	true | false default: false
settings.kubernetes.device-plugins.nvidia.pass-device-specs	sets the value of the pass-device-specs settings of the device plugin that pass the list of DeviceSpecs to the kubelet on Allocate	true | false default: true
settings.kubernetes.device-plugins.nvidia.device-id-strategy	sets the value of the device-id-strategy settings of the device plugin which specifies how GPUs are identified and selected for workloads running in a Kubernetes cluster	uuid | index Default: index
settings.kubernetes.device-plugins.nvidia.device-list-strategy	sets the value of  device-list-strategy setting in NVIDIA Kubernetes device plugins. It is used to configure how GPUs are listed and allocated to pods in a Kubernetes cluster	envvar | volume-mounts default: volume-mounts

Testing done: Yes.

Terms of contribution:

By submitting this pull request, I agree that this contribution is dual-licensed under the terms of both the Apache License, version 2.0, and the MIT license.

[cbgbt]

I spoke with @monirul yesterday about an idea to programmatically verify that feature unification has not taken place. Since we need to do a settings-sdk release for the new models anyways, I think it would be a good idea to make the requisite changes their too.

The basic idea is:

• Add conditionally-compiled const booleans for the enabled feature
• Statically assert in the settings models that those flags are as-expected.

[arnaldo2792]

This was superseded by #4182.