When 'ethrotate' variable is set to 'no' and 'ethact' variable
is already set to an ethernet device, we should stick to 'ethact'.
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Acked-by: NJoe Hershberger <joe.hershberger@ni.com>
Acked-by: NSimon Glass <sjg@chromium.org>
Tested-by: NSimon Glass <sjg@chromium.org>