ARM: dts: at91: sama7g5ek: enable pull-up on flexcom3 console lines

Flexcom3 is used as board console serial. There are no pull-ups on these
lines on the board. This means that if a cable is not connected (that has
pull-ups included), stray characters could appear on the console as the
floating pins voltage levels are interpreted as incoming characters.
To avoid this problem, enable the internal pull-ups on these lines.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>

Author: ehristev

arch/arm/boot/dts/at91-sama7g5ek.dts

@@ -557,7 +557,7 @@
 	pinctrl_flx3_default: flx3_default {
 		pinmux = <PIN_PD16__FLEXCOM3_IO0>,
 			 <PIN_PD17__FLEXCOM3_IO1>;
-		bias-disable;
+		bias-pull-up;
 	};
 
 	pinctrl_flx4_default: flx4_default {