net: designware: Adjust dw_adjust_link() to return an error

This function can fail, so return the error if there is one.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Romain Perier <romain.perier@collabora.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
1 file changed