[AMD][MI35X] 0503 MI355x DSV4

[1am9trash]

• Flip SGLANG_TOPK_TRANSFORM_512_TORCH from 1 to 0. The indexer's top-k step now runs the tilelang kernel instead of the torch path.
• Flip SGLANG_OPT_USE_FUSED_COMPRESS from false to true. The DeepseekV4 compressor now goes through the fused triton path instead of the torch path.

[github-actions]

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