staging: octeon: Don't bother filling in ethtool driver version

The version is same as the default, so don't bother filling it in.

Signed-off-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20240222090042.12609-4-john.g.garry@oracle.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>