net: sxgbe: fix logical vs bitwise operation

Bitwise '|' was intended here instead of logical '||'.

Fixes: 1edb9ca6 ('net: sxgbe: add basic framework for Samsung 10Gb ethernet driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>