tests: drivers: gpio: gpio_api_1pin: Add AW9523B test configuration

Add test configuration for Awinic AW9523B.

This device is a GPIO Expander, and no boards currently implement it.
Define the connection that connects it via the Arduino header and
define a fixture to enable it.

This has been confirmed with nucleo_h503rb.

Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>

tests/drivers/gpio/gpio_api_1pin/boards/aw9523b_on_arduino_header.overlay

@@ -0,0 +1,29 @@
+&arduino_i2c {
+	status = "okay";
+	aw9523b@58 {
+		status = "okay";
+		reg = <0x58>;
+		compatible = "awinic,aw9523b";
+
+		aw9523_gpio: gpio {
+			compatible = "awinic,aw9523b-gpio";
+			gpio-controller;
+			#gpio-cells = <2>;
+			port0-push-pull;
+			int-gpios = <&arduino_header 18 (GPIO_ACTIVE_LOW|GPIO_PULL_UP)>;
+			reset-gpios = <&arduino_header 19 (GPIO_ACTIVE_LOW|GPIO_PULL_UP)>;
+		};
+	};
+};
+
+/ {
+	leds {
+		aw9523_led0: aw9523_led0 {
+			gpios = < &aw9523_gpio 8 0>;
+		};
+	};
+
+	aliases {
+		led0 = &aw9523_led0;
+	};
+};

tests/drivers/gpio/gpio_api_1pin/testcase.yaml

@@ -11,3 +11,18 @@ tests:
       - mps2/an521/cpu0
       - neorv32
     filter: dt_enabled_alias_with_parent_compat("led0", "gpio-leds")
+  drivers.gpio.1pin.aw9523b:
+    tags:
+      - drivers
+      - gpio
+    depends_on:
+      - gpio
+      - arduino_gpio
+      - i2c
+    min_flash: 48
+    harness_config:
+      fixture: aw9523b_on_arduino_header
+    filter: dt_enabled_alias_with_parent_compat("led0", "gpio-leds") and
+            dt_compat_enabled("arduino-header-r3")
+    extra_dtc_overlay_files:
+      - "boards/aw9523b_on_arduino_header.overlay"