Xnn s16 vmultiply #208

Job	Run time
build-and-test / cmake-linux-local	13m 59s
build-and-test / cmake-linux-armhf	12m 35s
build-and-test / cmake-linux-riscv64	9m 55s
build-and-test / cmake-linux-aarch64	13m 48s
build-and-test / cmake-linux-riscv64-rvv	11m 33s
build-and-test / cmake-windows-arm64	8m 25s
build-and-test / cmake-windows-x64	10m 40s
build-and-test / cmake-windows-x86	11m 19s
build-and-test / bazel-linux-aarch64	11m 50s
build-and-test / bazel-linux-x86_64	14m 37s
build-and-test / bazel-linux-x86_64-gcc-9	9m 1s
build-and-test / cmake-ios-arm64	4m 51s
build-and-test / cmake-android (build-android-arm64.sh)	11m 23s
build-and-test / cmake-ios-x86_64	5m 49s
build-and-test / cmake-android (build-android-armv7.sh)	10m 34s
build-and-test / cmake-macos-arm64	10m 41s
build-and-test / cmake-android (build-android-x86.sh)	12m 12s
	3h 3m 12s

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