history: fixed storage domain status collection (#922499)

Had mistake in cross database status function, this patch
corrects this.

Bug-Url: https://bugzilla.redhat.com/922499

Change-Id: Iba80c84946d1566208f8ac1ac133f842696dd7e6
Signed-off-by: Yaniv Dary <ydary@redhat.com>