Implement VNNI based flash attention that uses SumOfMulQuadAccumulate#957
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It uses int8 kv's and on supported target can bring about 2x speedup of attention and about 10% speedup overall during prefill. PiperOrigin-RevId: 947705494
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Implement VNNI based flash attention that uses SumOfMulQuadAccumulate
It uses int8 kv's and on supported target can bring about 2x speedup of attention and about 10% speedup overall during prefill.