[U-Boot] [U-Boot, 17/36] rockchip: sdram_common: add common dram_init_banksize

[Philipp Tomsich]

> dram_init_banksize() can be common used by all SoCs, move it into
> sdram_common.c
> 
> Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
> ---
> 
>  arch/arm/mach-rockchip/sdram_common.c | 63 ++++++++++++++++++++++++++++++++++-
>  1 file changed, 62 insertions(+), 1 deletion(-)
> 

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