tests: pwm: Add support for SCTimer PWM on FRDM-MCXN947

Add overlay files to enable test of PWM over SCTimer.

Signed-off-by: Mahesh Mahadevan <[email protected]>

Author: mmahadevan108

tests/drivers/pwm/pwm_api/boards/frdm_mcxn947_mcxn947_cpu0_sctimer.overlay

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* Disable flexpwm node as it is mapped to pwm-0 alias which is picked up first by the test.
+ * PWM signal is visible on J9-16.
+ */
+&flexpwm1_pwm0 {
+	status = "disabled";
+};

tests/drivers/pwm/pwm_api/testcase.yaml

@@ -25,3 +25,8 @@ tests:
     extra_args: DTC_OVERLAY_FILE="boards/nrf54h20dk_nrf54h20_cpuapp_fast.overlay"
     platform_allow:
       - nrf54h20dk/nrf54h20/cpuapp
+  drivers.pwm.frdm_mcxn947_mcxn947_cpu0_sctimer:
+    extra_args: DTC_OVERLAY_FILE="boards/frdm_mcxn947_mcxn947_cpu0_sctimer.overlay"
+    platform_allow:
+      - frdm_mcxn947/mcxn947/cpu0
+      - frdm_mcxn947/mcxn947/cpu0/qspi