BatchPD removal changes - updating snow API

[SundarRajan98]

Motivation

This PR updates updates the vx_rpp version to 3.2.0 to match the batchPD removal PR in MIVISIONX. This PR also updates the snow augmentation API to match with the new snow tensor kernel.

Technical Details

This PR needs to be merged alongside the corresponding rpp PR and the MIVISIONX PR

Test Plan

Test Result

Submission Checklist

• Look over the contributing guidelines at https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.

[Copilot]

Pull request overview

This PR updates the rocAL snow augmentation API to align with the new snow tensor kernel in RPP, adding support for brightness coefficient and dark mode parameters. The changes are part of the broader batchPD removal effort across the MIVisionX ecosystem.

• Added two new parameters to the snow augmentation API: brightness_coefficient (range 1-4) and dark_mode (0/1)
• Updated API signatures across C++, Python bindings, and test files to support the new parameters
• Added version requirement check for MIVisionX vx_rpp

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
rocAL/CMakeLists.txt	Adds version check for vx_rpp >= 3.1.2 to ensure compatibility with updated snow API
rocAL/include/augmentations/effects_augmentations/node_snow.h	Adds brightness_coefficient and dark_mode member variables and updates init signatures
rocAL/include/api/rocal_api_augmentation.h	Updates rocalSnow and rocalSnowFixed API signatures and documentation with new parameters
rocAL/source/augmentations/effects_augmentations/node_snow.cpp	Implements initialization and handling of brightness_coefficient and dark_mode parameters
rocAL/source/api/rocal_api_augmentation.cpp	Updates API implementation to pass new parameters to SnowNode
rocAL_pybind/amd/rocal/fn.py	Adds brightness_coefficient and dark_mode parameters to Python snow function
tests/python_api/unit_test.py	Updates Python test to use new snow parameters
tests/cpp_api/unit_tests/unit_tests.cpp	Updates C++ test to use new snow parameters

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[LakshmiKumar23]

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