Bz1127459 amazon provisioning

The new feature for selecting Openstack tenants when provisioning into Openstack environments broke Amazon instance provisioning by attempting to show Quota data when provisioning into any Cloud environment.

Now, the Quota data is only shown when the selected template is an Openstack template.

Additionally, when both Amazon and Openstack templates are available, the "Select an Image" table was misaligned.  This was caused by Openstack templates showing tenant data whereas Amazon does not include tenant data.

https://bugzilla.redhat.com/show_bug.cgi?id=1127459