54l: Update ns board with patches from the secure board

The ns board has code that is copied from the secure board and must be
regularly updated to keep the two copies in sync.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>

boards/arm/nrf54l15pdk_nrf54l15/nrf54l15pdk_nrf54l15_cpuapp_ns.dts

@@ -18,6 +18,7 @@
 		zephyr,shell-uart = &uart20;
 		zephyr,flash = &rram0;
 		zephyr,sram = &sram0;
+		zephyr,ieee802154 = &ieee802154;
 	};
 
 	leds {
@@ -97,3 +98,35 @@
 &grtc {
 	status = "okay";
 };
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&gpio2 {
+	status = "okay";
+};
+
+&gpiote20 {
+	status = "okay";
+};
+
+&gpiote30 {
+	status = "okay";
+};
+
+&ieee802154 {
+	status = "okay";
+};
+
+&temp {
+	status = "okay";
+};
+
+&clock {
+	status = "okay";
+};