[U-Boot] [U-Boot, 12/36] rockchip: rk3036: sdram: use udelay instead of rockchip_udelay

[Philipp Tomsich]

> We are going to remove rockchip_udelay after enable arch timer.
> 
> Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
> ---
> 
>  arch/arm/mach-rockchip/rk3036/sdram_rk3036.c | 19 +++++++++----------
>  1 file changed, 9 insertions(+), 10 deletions(-)
> 

Acked-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>