core: Fix CDA message to include status

Use format message correctly for Storage validation

Signed-off-by: Maor Lipchuk <mlipchuk@redhat.com>
Bug-Url: https://bugzilla.redhat.com/1067103
Bug-Url: https://bugzilla.redhat.com/1066838
Change-Id: I9620d167ec969ee6523829f0bd92fd1ca65f6b1f