Symmetric quantized convolution kernel ARM64 (#9772)
Adding a symmetric quantized convolution kernel for ARM64
Note:
Indirect conv performs worse for shallow convs (input channels are small). This is much more so for low end pre-dot CPUs, where only 128 or deeper conv is faster with indirect conv. With DOT-CPUs, 32 deep conv is already faster
Co-authored-by: Chen Fu <fuchen@microsoft.com>
