Kernel: Add support for ATA CHS addressing and cleanup code

I thought that I had an PC without LBA support so I implement support
for CHS. Turns out that my ATA device detection was broken and was no
device on that port and initialize data was just garbage.

Now that I added CHS, I guess I should just keep it in :)

Both ATA read and write are now combined into a single function to avoid
code duplication.

kernel/include/kernel/Errors.h

@@ -14,7 +14,6 @@ namespace Kernel
 		Ext2_NoInodes,
 		Storage_Boundaries,
 		Storage_GPTHeader,
-		ATA_NoLBA,
 		ATA_AMNF,
 		ATA_TKZNF,
 		ATA_ABRT,