[AC97] Import the AC97 driver sample

The source code is licensed under MIT license, taken from
"MSDN Code Gallery Microsoft Samples" repository
(https://github.com/microsoftarchive/msdn-code-gallery

[AC97] Import the AC97 driver sample

The source code is licensed under MIT license, taken from
"MSDN Code Gallery Microsoft Samples" repository
(https://github.com/microsoftarchive/msdn-code-gallery-microsoft)

The original license was MS-PL, but the driver was later relicensed
as MIT.

Adopted to ReactOS code base by Michael Stamper.

Co-authored-by: Michael Stamper <michaelstamper1@gmail.com>

show more ...