Description of problem:
The current defaults NFS settings use "trusted = yes" for both client and server.
However, the NFS workflow (at least for the NFS client) should make it possible to have gssproxy working without trusted enabled.

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

How reproducible:
Always

Steps to Reproduce:
1. Check NFS server and client default settings

Actual results:
Trusted is used.

Expected results:
Trusted may not be used.

Additional info:
The example given in the upstream documentation shows that trusted is not used (https://pagure.io/gssproxy/blob/master/f/docs/NFS.md) for the NFS client.