storage: Don't initially assume encryption type is LUKS1
storage: Don't initially assume encryption type is LUKS1

Let's be honest and not show the type until we know for sure.  This
removes some races from tests as well.

mvollmer/cockpit,mvollmer/cockpit,mvollmer/cockpit,martinpitt/cockpit,martinpitt/cockpit,cockpit-project/cockpit,martinpitt/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,martinpitt/cockpit,mvollmer/cockpit,cockpit-project/cockpit,martinpitt/cockpit,mvollmer/cockpit