Add fix for SD-ATA44 activity LED

[tehKaiN]

some SD-ATA44 adapters wrongly produce activity signal, therefore it's not working even on A600/A1200 ATA controllers. There's a fix floating around involving soldering a transistor into adapter, but there was also a project of angled IDE adapter with single 74xx chip which fixed this signal.

• [x] Do a research how to fix it, preferably on expansion's side
• [ ] Do a fix