boards: mcxw23: Use SYSTICK as the default kernel timer

SYSTICK is used as the default kernel timer.
The FRO 1M clock source for OSTIMER is trimmed to ± 15%
accuracy over the entire voltage and temperature. The FRO 1M
is not accurate enough on the silicon.

Signed-off-by: Allen Zhang <[email protected]>

Author: AllenZhang-NXP

boards/nxp/frdm_mcxw23/frdm_mcxw23_common.dtsi

@@ -177,11 +177,11 @@
 };
 
 /*
- * MCXW23 FRDM board uses OS timer as the kernel timer
- * In case we need to switch to SYSTICK timer, then
- * replace &os_timer with &systick
+ * MCXW23 FRDM board uses SYSTICK timer as the kernel timer.
+ * In case we need to switch to OS timer, then
+ * replace &systick with &os_timer
  */
-&os_timer {
+&systick {
 	status = "okay";
 };
 

boards/nxp/mcxw23_evk/mcxw23_evk_common.dtsi

@@ -157,11 +157,11 @@
 };
 
 /*
- * MCXW23 EVK board uses OS timer as the kernel timer
- * In case we need to switch to SYSTICK timer, then
- * replace &os_timer with &systick
+ * MCXW23 EVK board uses SYSTICK timer as the kernel timer.
+ * In case we need to switch to OS timer, then
+ * replace &systick with &os_timer
  */
-&os_timer {
+&systick {
 	status = "okay";
 };