e2e: Add Ceph FS fscrypt validation helper
e2e: Add Ceph FS fscrypt validation helper

Add e2e helper to verify encrypted Ceph FS. Verify file's
ceph.fscrypt.auth attribute and KMS password creation / removal.

Signed-off-by: Marcel Lauhoff <71ffe8e889bf8a669a25bf46f8e88e7fab585e83@suse.com>

ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi