services: only update UnitFileState property as fetched from ListUnitFiles
services: only update UnitFileState property as fetched from ListUnitFiles

Previously we were updating also from GetAll which can give incorrect
value for this property.

moraleslazaro/cockpit,deryni/cockpit,martinpitt/cockpit,deryni/cockpit,mvollmer/cockpit,martinpitt/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,garrett/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,garrett/cockpit,cockpituous/cockpit,cockpituous/cockpit,moraleslazaro/cockpit,martinpitt/cockpit,garrett/cockpit,mvollmer/cockpit,deryni/cockpit,mvollmer/cockpit,deryni/cockpit,cockpit-project/cockpit,cockpituous/cockpit,cockpituous/cockpit,moraleslazaro/cockpit,garrett/cockpit,cockpituous/cockpit,garrett/cockpit,mvollmer/cockpit,cockpituous/cockpit,deryni/cockpit,deryni/cockpit,cockpit-project/cockpit,martinpitt/cockpit,martinpitt/cockpit,deryni/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,moraleslazaro/cockpit,mvollmer/cockpit