ARM: dts: lan966x: kontron-d10: fix board reset

The pinctrl node was missing which change the pin mux to GPIO mode. Add
it.

Fixes: 79d83b3 ("ARM: dts: lan966x: add basic Kontron KSwitch D10 support")
Signed-off-by: Michael Walle <mwalle@kernel.org>
[claudiu.beznea: moved pinctrl-* bindings after compatible]
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230616-feature-d10-dt-cleanups-v1-1-50dd0452b8fe@kernel.org

Author: mwalle

arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt.dtsi

@@ -18,6 +18,8 @@
 
 	gpio-restart {
 		compatible = "gpio-restart";
+		pinctrl-0 = <&reset_pins>;
+		pinctrl-names = "default";
 		gpios = <&gpio 56 GPIO_ACTIVE_LOW>;
 		priority = <200>;
 	};
@@ -59,6 +61,12 @@
 		function = "miim_c";
 	};
 
+	reset_pins: reset-pins {
+		/* SYS_RST# */
+		pins = "GPIO_56";
+		function = "gpio";
+	};
+
 	sgpio_a_pins: sgpio-a-pins {
 		/* SCK, D0, D1 */
 		pins = "GPIO_32", "GPIO_33", "GPIO_34";