arm64: dts: ti: k3-am625-sk: mark MCU and WKUP watchdogs as reserved

MCU wdt is typically used by M4F.
Wake up wdt is typically used by DM (R5) firmware.

Signed-off-by: Julien Panis <jpanis@baylibre.com>

arch/arm64/boot/dts/ti/k3-am625-sk.dts

@@ -821,6 +821,16 @@ &main_mcan0 {
 	status = "disabled";
 };
 
+&mcu_rti0 {
+	/* MCU RTI0 is used by M4F firmware */
+	status = "reserved";
+};
+
+&wkup_rti0 {
+	/* WKUP RTI0 is used by DM firmware */
+	status = "reserved";
+};
+
 &epwm0 {
 	status = "disabled";
 };