Request to set the maintenance flag

[syncrou]

The Provisioning dialog 'Environment' tab now shows current maintenance status per provider.
Per this comment from @agrare - ManageIQ/manageiq#16464 (comment)
we would like to see this flag tracked with ovirt providers moving forward.

https://bugzilla.redhat.com/show_bug.cgi?id=1513413

[miq-bot]

This issue has been automatically marked as stale because it has not been updated for at least 6 months.

If you can still reproduce this issue on the current release or on master, please reply with all of the information you have about it in order to keep the issue open.

Thank you for all your contributions!

[masayag]

Fixed by #147