trunk/f3d603baf74daa6ac8fbf15feb37f0edb6ac9ad3: Avoid re-inferring DeepSeek recipes in the TMA heuristic (#197458)

发生了什么

Human Note Simple fix for DeepSeek-style scaling. Agent note Prepared with AI assistance. At K=128, valid DeepSeek scale shapes [M, 1] and [1, 1] also satisfy the shape-only rowwise predicate. Re-inferring their recipes inside the already-selected main-loop heuristic therefore makes get_tile_size reject RowWise and compilation fails. Both supported main-loop recipes have 128-element K blocks. Use that invariant here…

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