Leftovers of "ReactOS Foundation"

The codebase still has some mentions of "ReactOS Foundation", while it actually was dissolved in 2015 - you can read about it on our wiki.

I just noticed one of leftovers while checking AC'97 driver files:

Relevant greps:

• https://git.reactos.org/?p=reactos.git&a=search&h=HEAD&st=grep&s=ReactOS%20Foundation
• https://git.reactos.org/?p=reactos.git&a=search&h=HEAD&st=grep&s=ReactOS(R)%20Foundation