[U-Boot] [U-Boot,1/2] rk3288: tinker: Add TPL support

[Philipp Tomsich]

> Since the size of SPL can't be exceeded 0x8000 bytes in RK3288,
> it is not possible add new SPL features like Falcon mode or etc.
> 
> So add TPL stage so-that adding new features to SPL is possible.
> - TPL: DRAM init, clocks
> - SPL: MMC, falcon, etc
> 
> Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
> ---
>  arch/arm/mach-rockchip/rk3288/Kconfig | 16 ++++++++++++++++
>  configs/tinker-rk3288_defconfig       |  4 +++-
>  2 files changed, 19 insertions(+), 1 deletion(-)
> 

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