dts: sy1xx: add gpio support

With this commit we add the gpio functionality to
the sensry soc sy1xx.

Signed-off-by: Sven Ginka <s.ginka@sensry.de>

Author: tswaehn

dts/riscv/sensry/ganymed-sy1xx.dtsi

@@ -3,6 +3,8 @@
 
 /dts-v1/;
 
+#include <zephyr/dt-bindings/pinctrl/sy1xx-pinctrl.h>
+
 / {
 	#address-cells = <1>;
 	#size-cells = <0>;
@@ -87,6 +89,16 @@
 			status = "okay";
 		};
 
+		gpio0: gpio@1a101000 {
+			compatible = "sensry,sy1xx-gpio";
+			gpio-controller;
+			#gpio-cells = <2>;
+			reg = <0x1a101000 0x20>;
+			pad-cfg = <SY1XX_GPIO0_PAD_CFG0>;
+			status = "okay";
+			ngpios = <32>;
+		};
+
 		pinctrl: pinctrl@1a104000 {
 			compatible = "sensry,sy1xx-pinctrl";
 			reg = <0x1a104000 0x1000>;