[Platform] Refactor memory manage function in memory_profiling to Platform

[ji-huazhong]

This PR is a refactoring of memory manage function in memory_profiling.

I put this function into Platform and implement it in each XxxPlatform subclass, making memory_profiling platform agnostic.

Part of: #11162

cc @youkaichao

[github-actions]

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[youkaichao]

this file is only used by nvidia gpus. we don't need to hide torch.cuda in this file.

[youkaichao]

we only create abstractions when necessary. right now these code are mainly used for nvidia gpus, and it might not work for other platforms. therefore I don't think we need to create abstractions for them right now.