Description of problem:
rhevm-shell 'show host' command does not display the power management additional options when configured on a host / hypervisor.

Version-Release number of selected component (if applicable):
RHEV 3.2

How reproducible:
[RHEVM shell (connected)]# show host <hostname>

id                                    : 
<snip>
power_management-address              : 
power_management-agents-agent-address : 
power_management-agents-agent-order   : 
power_management-agents-agent-type    : 
power_management-agents-agent-username: 
power_management-enabled              : 
power_management-type                 : 
power_management-username             : 
<snip>

This does not show all of the available information for the power_management options

Actual results:
The above power_management attributes are displayed

Expected results:
Ideally all available attributes for the host will be shown.