add "opus/silk/arm/NSQ_neon.c" to the "target_arch==\"arm64\"" condit…

[deepso7]

## Description

Fixes dyld: missing symbol called on macOS and apple silicon
as reported in #165

[krische]

@vladfrangu Can this get reviewed and merged?

[vladfrangu]

Is this needed? I've been able to use it on macos M1 without this 👀

[krische]

Is this needed? I've been able to use it on macos M1 without this 👀

Interesting, I'm targeting linux/arm64/v8 container platform in my GitHub build and it's failing to compile opus inside it for I believe the error this PR fixes. I'll have to try and isolate it further to reproduce.

[vladfrangu]

If you can get us a repro dockerfile or such that'd be lovely too! Including the JS code to test locally 🙏