Description of problem:
Login with a non-privilege user and try to add a nic to a VM, the save button is disabled.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. add a nic as nonpriv user
2.
3.

Actual results:
the save button is disabled

Expected results:
the save button is enabled and the nic can be added successfully

Additional info: