Revert "Revert "block/sio: fixes for sio""

This reverts commit 46ff43efaeee8e16dc2a048af2e4ef823883f632.

Signed-off-by: zwliew <zhaoweiliew@gmail.com>
block/sio: fix compile error

Dumb mistake on my part.

Change-Id: Ic532c815052a11e1ded67b2f836460807d8a16c5
Signed-off-by: zwliew <zhaoweiliew@gmail.com>