uboot-phytec

rockchip: rk3399: tpl: Mark printascii into debug

Now, we have spl_board_init which has TPL banner prints.

So mark the 'U-Boot TPL board init' print into debug.

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