[U-Boot] [U-Boot,2/2] rockchip: rk3188: fix early uart setup

[Philipp Tomsich]

> Commit 7a6d7d3e1279 ("rockchip: pinctrl: rk3188: Move the iomux definitions
> into pinctrl-driver") moved the iomux settings out of the grf header
> to prevent conflicts with the iomux definitions of other rockchip socs.
> 
> This also breaks the early uart setup, as the iomux for uart2 are needed.
> To fix that just put the tiny amount of needed iomux definitions next to
> the early uart code.
> 
> Fixes: 7a6d7d3e1279 ("rockchip: pinctrl: rk3188: Move the iomux definitions into pinctrl-driver")
> Signed-off-by: Heiko Stuebner <heiko at sntech.de>
> Reviewed-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>
> ---
>  arch/arm/mach-rockchip/rk3188-board-spl.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 

Applied to u-boot-rockchip, thanks!