[release-4.11] Bug 2110256: Storage -> PVC -> upload data, does not support source reference

Data upload form in storage -> PVC -> Data upload form, does not support source Ref.

100%

1. storage -> PVC -> Data upload
2. click "Attach this data to a Virtual Machine operating system"
3. 

If the template using sourceRef ( and the source reference name is not identical to the PVC name ), the vm will use the sourceRef and not the uploaded data source.

a - do not allow to upload to specific template/s, ( use a different UI to manage sourceRef and importCron )
b - allow to upload to specific template/s, and make sure it works with sourceRef and importCron

this is a manual clone of [1]. Summary: The checkbox of "Attach this data to a Virtual Machine operating system" should go away, for more info follow comments on [1].
[1] https://bugzilla.redhat.com/show_bug.cgi?id=2110256