Thread scheduler recommendation

[Darkhost1999]

If it's not recommended to use a thread scheduler unless you have 12+ threads then we probably should avoid recommending it to those who can't use the option.

https://github.com/RPCS3/rpcs3/blob/master/rpcs3/rpcs3qt/tooltips.h#L86

Just a thought honestly. If fewer than 12 threads don't print out the message that thread scheduler may improve performance as it may just make things worse and they'll probably disregard the tooltip thinking "The bot told me it was ok"
[The image is just an example I took from the last log I saw when thinking about this]

[13xforever]

That's only relevant for Intel CPUs, and there's already check for that

[Asinin3]

Huh? The thread scheduler is only relevant for AMD, not Intel.