core:ovirt-engine-backend: engine.log is flooded..

ovirt-engine-backend: engine.log is flooded by Failed to decrypt Data

Excluding the key store password (keystorePass) out of the list, so it
will not be
encrypted.

Change-Id: Ife6005688a06d62a740970ea14b617010d6b9b2d
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=880978
Signed-off-by: Eli Mesika <emesika@redhat.com>