Description of problem:
RHV vmimport CR has no "failed" status as expected after deleting the importing VM during disk copy
It seems in UI with status "importing" 


Version-Release number of selected component (if applicable):
CNV 2.5.0-413 (iib-24150)
OCP 4.6.1


How reproducible:
100%


Steps to Reproduce:
1. Have a running VM in RHV
2. Create VMimport CR via API
3. After source VM is powered off and the disk copy was started -> delete the importing VM: oc delete vm <vm-name>


Actual results:
VMimport status is "Processing"
UI: VMimport is displayed in VM page with status "importing"
The disk copy is done and VMImport CR is removed from VM page in UI


Expected results:
VMimport should have status "failed" due to VM deletion


Additional info:
* Tested using NFS storage class


Attachments:
yamls & logs: vm-import-controller, importer pod
vmimport CR describe