arm64: rk3399: r4s: Remove undesirable MAC address fetching methods for ethernet

Remove the recommended MAC address from the network card.
NanoPi R4S has a EEPROM attached to the 2nd I2C bus (U92), which stores the MAC address.

Signed-off-by: Xiaobo Tian <peterwillcn@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
1 file changed