staging: octeon: set up pknd for all interfaces

RX path uses pknd to find the correct device, and we maintain 1:1
port to pknd mapping. However, this is only set for XAUI interfaces
(in the arch code). But it should be set for all interface types.

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