sycl: reduce redundant work in Q4_K multi-column MMVQ (#27062) #235

Job	Run time
check-release	3s
windows-rocm (10.0.0, gfx1010;gfx1011;gfx1012;gfx1030;gfx1031;gfx1032;gfx1033;gfx1034;gfx1035;gfx...	3h 5m 7s
windows-cuda (13.3, x64)	1h 31m 38s
windows-cuda (13.4, arm64)	1h 38m 41s
windows-sycl	26m 52s
windows (vulkan, x64, -DGGML_VULKAN=ON, ggml-vulkan)	4m 58s
ios-xcode	10m 21s
windows (opencl-adreno, arm64, -G "Ninja Multi-Config" -D CMAKE_TOOLCHAIN_FILE=cmake/arm64-window...	2m 29s
windows-cuda (12.4, x64)	3h 12m 2s
ui-build / build	6m 47s
ubuntu-cpu (x64, ubuntu-22.04)	8m 25s
ubuntu-cpu (arm64, ubuntu-24.04-arm)	5m 0s
macos-cpu (x64, x64, macos-15-intel, -DGGML_METAL=OFF -DCMAKE_OSX_DEPLOYMENT_TARGET=13.3)	7m 30s
ubuntu-24-sycl (fp32)	25m 50s
windows-cpu / arm64	6m 20s
ubuntu-24-openvino	5m 47s
ubuntu-24-sycl (fp16)	21m 33s
windows-openvino	10m 52s
android-arm64	7m 42s
ubuntu-vulkan (x64, ubuntu-22.04)	11m 43s
ubuntu-24-rocm (10.0.0, gfx908;gfx90a;gfx942;gfx950;gfx1010;gfx1011;gfx1012;gfx1030;gfx1031;gfx10...	2h 24m 52s
macos-cpu (arm64, arm64, macos-26, -DGGML_METAL_EMBED_LIBRARY=ON -DCMAKE_OSX_DEPLOYMENT_TARGET=13.3)	6m 8s
windows-cpu / x64	8m 35s
ubuntu-vulkan (arm64, ubuntu-24.04-arm)	8m 22s
ubuntu-cpu (s390x, ubuntu-24.04-s390x)	1d 0h 0m 0s
release	-1s
ui-publish	-1s
	1d 14h 57m 35s

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