[Bugfix] Fix Qwen3-VL max_num_video_tokens calculation for video profiling

[Isotr0py]

Purpose

• Suspend of [VLM] Update Qwen3-VL max_num_video_tokens calculation for configurable video profiling #25557 before we support configurable mm profiling

Test Plan

Test Result

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• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
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[gemini-code-assist]

Code Review

This pull request addresses a video profiling issue in Qwen3-VL by reusing Qwen2-VL's profiling logic with some modifications. The changes involve reducing _MAX_FRAMES_PER_VIDEO in qwen2_vl.py and adding a hack in qwen3_vl.py to disable resizing during dummy input generation.

While the hack in qwen3_vl.py is clearly documented as a temporary measure, modifying a constant in qwen2_vl.py to fix an issue in qwen3_vl.py introduces an undesirable side effect on Qwen2-VL's own profiling. My review includes a suggestion to isolate this change to qwen3_vl.py to avoid impacting other models.