uboot-imx

ARM: rmobile: Zap ad-hoc PFC and GPIO setup in board files

At long last, nuke all this ad-hoc setup in board files in favor of
letting PFC pinmux and GPIO drivers do the same job, but based on DT
description of the hardware rather than this board-file ugliness.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>