Add support to the driver to fully recognize and enable 2.5GbE speed in
10GBaseT mode.
Acked-by: NShyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: NRaju Rangoju <Raju.Rangoju@amd.com>
Signed-off-by: NPaolo Abeni <pabeni@redhat.com>