[U-Boot] [U-Boot, 1/8] rockchip: rk3328: add tpl board file support

[Philipp Tomsich]

> rk3328 tpl suppose to init ddr sdram and then back to bootrom.
> 
> Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
> ---
> 
>  arch/arm/mach-rockchip/Makefile           |   1 +
>  arch/arm/mach-rockchip/rk3328-board-tpl.c | 114 ++++++++++++++++++++++++++++++
>  2 files changed, 115 insertions(+)
>  create mode 100644 arch/arm/mach-rockchip/rk3328-board-tpl.c
> 

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