[U-Boot] [PATCH] arm: imx: Change iomux functions to void type

[Marek Vasut]

Dear Stefan Roese,

> They never return anything also than 0, so lets change the function
> to void instead.
> 
> Signed-off-by: Stefan Roese <sr at denx.de>

Add my:
Reviewed-by: Marek Vasut <marex at denx.de>

Best regards,
Marek Vasut