Function keys not working on MacBook5,2 A1466 under Monterey

Hi there,

I used OCLP to install Monterey on my Macbook Air mid-2012 (A1466), and the functions keys aren't working anymore.

I wonder if it was an existing matter as I found in the changelog for 0.6.6 version :

- Restore Function Keys on MacBook5,2 and MacBook4,1

- Implementation by [@jazzzny](https://github.com/Jazzzny)

I didn't find much on that subject on the internet, is someone familiar with it?

Thanks!