[U-Boot] [PATCH 1/1] rockchip: evb-rk3399: correct README for board bring up

[Dr. Philipp Tomsich]

> On 3 Jun 2018, at 16:50, Heinrich Schuchardt <xypron.glpk at gmx.de> wrote:
> 
> %s/rkflashtool/rkdeveloptool/
> 
> We are using rkdeveloptool not rkflashtool.
> 
> Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>

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