Put VM UUID to live migration error notification

If live migration encounter some exception before nova scheduler
cast message to nova compute, nova scheduler will set the VM state
to ERROR and send notification, but the notification do not include
VM UUID, this might cause some problem if some components want to
handle the notification since those components will not able to know
the VM UUID about the notification.

The solution is add UUID to live migration error notification so other
components can get the related notification correctly.

Fix bug 1182117

Change-Id: Id101f9e2a689a02d1604c12cd7677e0975bd7428
Merge "Put VM UUID to live migration error notification"