rockchip: Enable Console MUX in ROCKPi N8

Enable Console multiplexing in ROCKPi N8 which would is
required to video out the console buffer.

Enable it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang<kever.yang@rock-chips.com>
1 file changed