ARM: dts: sun9i: Add uart4 pinmux setting for A80 SoC

uart4 only has one possible pinmux setting on the A80 SoC.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
1 file changed