Add PTPC Fused MoE and PTPC Gemm Support; AITER upgrade to 916bf3c

[tjtanaavllm]

Please direct your PRs to the upstream vllm (https://github.com/vllm-project/vllm.git)

Accepting PRs into the ROCm fork (https://github.com/ROCm/vllm) will require a clear previously communicated exception

[github-actions]

👋 Hi! Thank you for contributing to the vLLM project.

💬 Join our developer Slack at https://slack.vllm.ai to discuss your PR in #pr-reviews, coordinate on features in #feat- channels, or join special interest groups in #sig- channels.

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Once the PR is approved and ready to go, your PR reviewer(s) can run CI to test the changes comprehensively before merging.

To run CI, PR reviewers can either: Add ready label to the PR or enable auto-merge.

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