Bool for "Hosted Engine" doesn't make any sense in a cluster

Output whether or not the engine is configured or not, not
True/False, which can be misleading if the engine is not running
on this node

Change-Id: Ie38fffca7f8570a001be6dcd372b3f01fe0755f9
Signed-off-by: Ryan Barry <rbarry@redhat.com>