core: fixing missing (English) AuditLog values

Fixing the reported messages in the BZ
A '+' sign marks that issue was addresses and a message was added
a '-' sign marks that issue was not addressed with the reason

UNASSIGNED +
VDS_AUTO_FENCE_STATUS +
VDS_AUTO_FENCE_STATUS_FAILED +
VDS_AUTO_FENCE_FAILED_CALL_FENCE_SPM +
VDS_HIGH_NETWORK_USE - Deprecated
USER_FAILED_REMOVE_VM - Deprecated
USER_RUN_UNLOCK_ENTITY_SCRIPT -  Used only from SQL script therefor
    should not have severity & message
VDS_NETWORK_MTU_DIFFER_FROM_LOGICAL_NETWORK - Deprecated
VDS_HOST_IN_CONNECTING_STATE - handled in
    http://gerrit.ovirt.org/#/c/31886/
STORAGE_ACTIVATE_ASYNC - Deprecated
DWH_STOPPED +
DWH_STARTED +
DWH_ERROR +
USER_REMOVE_AUDIT_LOG +
USER_REMOVE_AUDIT_LOG_FAILED +
USER_CLEAR_ALL_DISMISSED_AUDIT_LOG +
USER_CLEAR_ALL_DISMISSED_AUDIT_LOG_FAILED +

Change-Id: I74a08a8c7d5f18707bf8cbcac5d9d169c5556def
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1119186
Signed-off-by: Eli Mesika <emesika@redhat.com>