staging: octeon: stop using cvmx_helper_link_autoconf()

Stop using cvmx_helper_link_autoconf(). We want to remove it in the future,
as it duplicates link state information into platform code for no reason.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>