pinctrl: stmfx: stmfx_pinconf_set doesn't require to get direction anymore

Pin direction is not used to set pin configuration.

Fixes: a502b343 ("pinctrl: stmfx: update pinconf settings")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20200422072513.8352-1-amelie.delaunay@st.com


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>