arm64: dts: rk3399-nanopi4: Add u-boot,spl-boot-order

Add u-boot,spl-boot-order as sdhci and sdmmc for booting
from eMMC and SD card.

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