Add Intel Gaudi doc
Author: regisss
Pull request: yes

# What does this PR do?

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As per title, following #36424.

## Before submitting
- [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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- [ ] Did you write any new necessary tests?


## Who can review?

Anyone in the community is free to review the PR once the tests have passed. Feel free to tag
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Comments:
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