[ROCM][Bug fix] fix aiter asm atten on hybrid models

[yuankaichen-amd]

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[mergify]

This pull request has merge conflicts that must be resolved before it can be
merged. Please rebase the PR, @yuankaichen-amd.

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork

[gemini-code-assist]

Code Review

This pull request updates the KV cache handling in the ROCm Aiter attention backend to support non-contiguous memory layouts. It introduces block stride parameters to the reshape and cache shuffle kernel and implements logic to use torch.as_strided for handling non-contiguous key and value caches. Additionally, it ensures the query tensor is contiguous before passing it to the assembly forward pass. I have no feedback to provide as there are no review comments.