Host score method accepts DOWN_MISSING VM state
Host score method accepts DOWN_MISSING VM state

The DOWN_MISSING state should not happen,
but I have seen logs where it did.
It is probably some edge race condition.

Without this patch, the scoring function would raise
and exception when the VM is DOWN_MISSING.

Change-Id: Ib5a9260096b5eda17185e9de43af71c4b534d7d4
Signed-off-by: Andrej Krejcir <cd319b80dc788d308d262d82d71619ebc6569033@redhat.com>

oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha