ceph: integration test for upgrade from nautilus to octopus
ceph: integration test for upgrade from nautilus to octopus

The upgrade test will now support upgrading from nautilus
to octopus and that files and be read and written
after the upgrade.

Signed-off-by: Travis Nielsen <a8b474fdb3f77f44446f0ab9ddca8147b09b3a9e@redhat.com>

rook/rook,rook/nfs,rook/nfs,rook/nfs,rook/rook,rook/rook,rook/rook,rook/rook