tests: drivers: adc: adc_api: add nucleo u5a5zj-q board

Add Nucleo U5A5ZJ-Q board to the list of supported boards.

Signed-off-by: Guillaume Gautier <[email protected]>

Author: gautierg-st

tests/drivers/adc/adc_api/boards/nucleo_u5a5zj_q.overlay

@@ -0,0 +1,25 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright (c) 2023 STMicroelectronics
+ */
+
+/ {
+	zephyr,user {
+		/* adjust channel number according to pinmux in board.dts */
+		io-channels = <&adc1 1>;
+	};
+};
+
+&adc1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	channel@1 {
+		reg = <1>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,resolution = <12>;
+	};
+};