The p2wi controller has only one possible pinmux setting. Use it by
default in the dtsi, instead of having to set it in each board's dts.
Signed-off-by: NBoris BREZILLON <boris.brezillon@free-electrons.com>
[wens@csie.org: reformat commit title; rename p2wi pins and use as default]
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>