Gemma-4 MTP: skip pooling/sampling epilogue for MTP graphs (fixes decode crash) + widen DKQ=512 TILE routing to all gqa_ratio#25

PhilEgly wants to merge 2 commits into

AtomicBot-ai:feature/turboquant-kv-cacheAtomicBot-ai/atomic-llama-cpp-turboquant:feature/turboquant-kv-cachefrom

PhilEgly:fix/gemma4-mtp-build-pooling-epiloguePhilEgly/atomic-llama-cpp-turboquant:fix/gemma4-mtp-build-pooling-epilogueCopy head branch name to clipboard