rk3288: vyasa: Add console settings

Add console settings like stdin, stdout and stderr as
cros-ec-keyb and vidconsole respectively for Vyasa Rk3288
board.

This would certainly help to detect the attached video
devices (like HDMI) and print the console message on display.

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