[U-Boot] ARM: rockchip: rv1108: Fix booting with initramfs

[Philipp Tomsich]

> We move the ramdisk_addr_r to 0x68000000 and disable the initrd and
> fdt relocation, so the initramfs works out of box.
> 
> Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
> Reviewed-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>
> ---
> 
>  include/configs/rv1108_common.h | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 

Applied to u-boot-rockchip, thanks!