Enable qc4w avx vnni packing #620

Job	Run time
build-and-test / cmake-linux-x86_64	1m 48s
build-and-test / cmake-linux-aarch64	1m 19s
build-and-test / cmake-linux-armhf	1m 40s
build-and-test / cmake-linux-riscv64	2m 1s
build-and-test / cmake-android (arm64)	2m 8s
build-and-test / cmake-windows-arm64	3m 12s
build-and-test / cmake-linux-riscv64-rvv	1m 50s
build-and-test / cmake-ios-x86_64	4m 39s
build-and-test / cmake-android (armv7)	1m 33s
build-and-test / cmake-ios-arm64	2m 47s
build-and-test / cmake-android (x86)	1m 52s
build-and-test / cmake-macos-arm64	1m 17s
build-and-test / cmake-windows-x86	5m 42s
build-and-test / cmake-windows-x64	4m 42s
build-and-test / bazel-linux-aarch64-clang18	2m 6s
build-and-test / bazel-linux-aarch64-gcc13	2m 2s
build-and-test / bazel-linux-x86_64-clang-18	1m 59s
build-and-test / bazel-linux-x86_64-gcc-9	2m 12s
	44m 49s

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