[Core] Use platform-agnostic device control for DP engine core

[jianzs]

Refactor the DP engine core to use the platform-specific device_control_env_var attribute instead of hardcoding CUDA_VISIBLE_DEVICES. This change improves platform compatibility and code maintainability.

The update includes:

1. Moving the device_id_to_physical_device_id function to a shared utils file
2. Updating imports in CUDA and ROCm platform files
3. Replacing CUDA-specific environment variable setting with a platform-agnostic approach in the DPEngineCoreProc class

This refactoring enhances the flexibility of the codebase to support different platforms more seamlessly.

[github-actions]

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