On disco and eval board, Tx and Rx delay are applied (pull-up of 4.7k
put on VDD) so which correspond to RGMII-ID mode with internal RX and TX
delays provided by the PHY, the MAC should not add the RX or TX delays
in this case
Signed-off-by: NChristophe Roullier <christophe.roullier@st.com>
Signed-off-by: NAlexandre Torgue <alexandre.torgue@st.com>