This updates the release note for the boot-from-volume fix for
nodes with iscsi deploy interface (by calling boot.prepare_instance).
It clarifies what the failure had been and what was fixed.
The fix was at 49c4bba14e.
Change-Id: Ieef58d44cd27f4bd0cd979fc8007fbe4f960fa73
Related-Bug: #1714436
401 B
401 B