Fix missing fast tokenizer/image_processor in whisper/qwen2.5-omni processor
Author: Isotr0py
Pull request: yes

# What does this PR do?

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Fixes https://github.com/vllm-project/vllm/issues/20224
- Fix missing `WhisperTokenizerFast` in whisper processor


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Comments:
The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/transformers/pr_39244). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

Oh, seems Qwen2.5-Omni also has this issue, let me fix it in this PR as well... (https://buildkite.com/vllm/ci/builds/23308#0197e318-8772-4070-8b61-e4e18ccee67f/211-4370) 

**[For maintainers]** Suggested jobs to run (before merge)

run-slow: qwen2_5_omni, whisper