Fix mini candidates
<value>org.zstack.compute.allocator.AttachedL2NetworkAllocatorFlow</value>
<value>org.zstack.compute.allocator.QuotaAllocatorFlow</value>
<value>org.zstack.compute.allocator.BackupStorageSelectPrimaryStorageAllocatorFlow</value>
+ <value>org.zstack.compute.allocator.DesignatedHostAllocatorFlow</value>
<value>org.zstack.compute.allocator.HostStateAndHypervisorAllocatorFlow</value>
<value>org.zstack.compute.allocator.ImageBackupStorageAllocatorFlow</value>
<value>org.zstack.compute.allocator.HostCapacityAllocatorFlow</value>
