config: Don't fudge port numbers

config: Don't fudge port numbers

When I was adding knet I wanted the port numbers to default to the
base port number + the linknumber.

However I seem to have messed this up such that any port number
specified in the config file has the link number added to it. Which
is almost certainly not what people would expect.

This patch sets it right. If a port number is not specified
then 5405+linknumber is used. If a port number IS specified
then that actual number is used.

Signed-off-by: Christine Caulfield <ccaulfie@redhat.com>
Reviewed-by: Jan Friesse <jfriesse@redhat.com>