wip: try explicit path to snapshotclass

Author: wozniakjan

test/external-e2e/testdriver.yaml

@@ -4,7 +4,7 @@
 StorageClass:
   FromFile: /tmp/csi/storageclass.yaml
 SnapshotClass:
-  FromName: true
+  FromFile: /tmp/csi/snapshotclass.yaml
 DriverInfo:
   Name: test.csi.k8s.io
   SupportedFsType: {"nfs"}