validate additional drivers only if managed by gpu-operator

[rahulait]

Description

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

Manually deployed a cluster with gpu-operator image from this PR.

Verified that all pods are able to come up fine and additional drivers are also validated correctly.

time="2026-01-23T20:08:10Z" level=info msg="version: v25.10.1, commit: a7709fe6"
time="2026-01-23T20:08:10Z" level=info msg="Attempting to validate a pre-installed driver on the host"
time="2026-01-23T20:08:10Z" level=info msg="No pre-installed driver detected on the host: no 'nvidia-smi' file present on the host: lstat /host/usr/bin/nvidia-smi: no such file or directory"
time="2026-01-23T20:08:10Z" level=info msg="Validating containerized driver installation"
time="2026-01-23T20:08:10Z" level=info msg="Driver is not pre-installed on the host and is managed by GPU Operator. Checking driver container status."
...
time="2026-01-23T20:09:35Z" level=info msg="Attempting to validate a driver container installation"
...
running command sh with args [-c lsmod | grep -E '^gdrdrv\s']
time="2026-01-23T20:09:35Z" level=info msg="Validating additional driver component: gdrcopy"
...

[copy-pr-bot]

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[rahulait]

/ok to test a7709fe