engine : simplify resource state check
engine : simplify resource state check

Simplify the test to check the resource is in a COMPLETE state
(other than DELETE_COMPLETE), so we don't have to update this for
every new action state which gets added

Change-Id: I91286d3d0464b1a71dafd01ac209ea7ded259875

rh-s/heat,gonzolino/heat,openstack/heat,gonzolino/heat,steveb/heat,ntt-sic/heat,cryptickp/heat,pratikmallya/heat,citrix-openstack-build/heat,redhat-openstack/heat,rickerc/heat_audit,dragorosson/heat,maestro-hybrid-cloud/heat,varunarya10/heat,citrix-openstack-build/heat,JioCloud/heat,openstack/heat,redhat-openstack/heat,jasondunsmore/heat,jasondunsmore/heat,miguelgrinberg/heat,pshchelo/heat,cwolferh/heat-scratch,noironetworks/heat,takeshineshiro/heat,srznew/heat,NeCTAR-RC/heat,steveb/heat,varunarya10/heat,pratikmallya/heat,rdo-management/heat,ntt-sic/heat,takeshineshiro/heat,maestro-hybrid-cloud/heat,dims/heat,cwolferh/heat-scratch,miguelgrinberg/heat,dragorosson/heat,pshchelo/heat,cryptickp/heat,rickerc/heat_audit,rh-s/heat,rdo-management/heat,NeCTAR-RC/heat,srznew/heat,noironetworks/heat,dims/heat,JioCloud/heat