Tobiko IR tasks failed on some downstream environments when the
undercloud hostname was not undercloud-0
When this happens, the tobiko IR command can be executed with
--undercloud-host or --underclout-ssh-host options
RHOSENTDFG-1695
Change-Id: Ife055b62682044bdc446e6447ef9da562fe4bb73
Co-Author: Eduardo Olivares Toledo <eolivare@redhat.com>