Support for precompiled GDRCopy

[just1not2]

Description

Context

Add a new usePrecompiled field to the GDRCopy CRD and corresponding spec in the GPU Operator.

When enabled, this option allows the operator to use precompiled GDRCopy driver images instead of building the gdrdrv kernel module on the target node.

Motivation

Some environments rely on container images that already contain a prebuilt gdrdrv kernel module. These images are built specifically for a given kernel version and require the image tag to include a suffix matching the node's current kernel.

Introducing usePrecompiled provides an explicit way to opt into this workflow and enables the operator to select images that contain a kernel-specific precompiled gdrdrv module, avoiding the need for on-node compilation.

Checklist

• No secrets, sensitive information, or unrelated changes
• Lint checks passing (make lint)
• Generated assets in-sync (make validate-generated-assets)
• Go mod artifacts in-sync (make validate-modules)
• Test cases are added for new code paths

Testing

This has been tested for months at Datadog Inc. (see here)

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