move things around

firmware/app/boards/nucleo_f302r8.overlay

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2021 Nordic Semiconductor ASA
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* This devicetree overlay file will be automatically picked by the Zephyr
+ * build system when building the sample for the nucleo_f302r8 board. It shows
+ * how the example-application can be built on sample boards already provided
+ * by Zephyr.
+ */
+
+/ {
+	example_sensor: example-sensor {
+		compatible = "zephyr,example-sensor";
+		input-gpios = <&gpioc 13 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+	};
+
+	blink_led: blink-led {
+		compatible = "blink-gpio-led";
+		led-gpios = <&gpiob 13 GPIO_ACTIVE_HIGH>;
+		blink-period-ms = <1000>;
+	};
+};
+
+&gpioc {
+	status = "okay";
+};