tests: subsys: pm: Enable power_mgmt_soc for MAX78002EVKIT

Enables power management test for MAX78002EVKIT.

Signed-off-by: Furkan Akkiz <hasanfurkan.akkiz@analog.com>

tests/subsys/pm/power_mgmt_soc/boards/max78002evkit_max78002_m4.conf

@@ -0,0 +1,6 @@
+# Copyright (c) 2024 Analog Devices, Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+CONFIG_COUNTER=y

tests/subsys/pm/power_mgmt_soc/boards/max78002evkit_max78002_m4.overlay

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2024 Analog Devices, Inc.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		zephyr,cortex-m-idle-timer = &rtc_counter;
+	};
+};
+
+&rtc_counter {
+	status = "okay";
+	wakeup-source;
+};