media: Add configurable Video Buffer Pool size for 720p

[johnedocampo]

Bug: 416105795

[github-actions]

🤖 Gemini Suggested Commit Message

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media: Support configurable 720p media budget

This change introduces a new H5VCC setting to allow the video demuxer
memory limit to be configured specifically for 720p and lower content.
Previously, memory limits were fixed based on bit depth and resolution.

By exposing Media.Configurable720pMediaBudgetMb, the video memory
pool size can be tuned at runtime. This provides flexibility for
memory-constrained devices to optimize their media budget without
affecting higher-resolution content playback.

Bug: 416105795

---

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