only attempt the rpm-ostree upgrade once (no reboot loop)
only attempt the rpm-ostree upgrade once (no reboot loop)

Change-Id: I3ee887850593205942ffefc217e88f3dd7e9ac0b

v1k0d3n/heat-kubernetes,larsks/heat-kubernetes,yuanying/heat-kubernetes,jamesmarva/heat-kubernetes,rootfs/heat-kubernetes,mdshuai/heat-kubernetes,projectatomic/heat-kubernetes