arch: arm: dts: k3-am62a7-phyboard-lyra: Disable unused watchdogs in U-Boot

The watchdog driver probes all available watchdog devices.
This causes SMP boot errors when bringing up secondary CPUs.
In our setup, only a single watchdog is needed to monitor the
boot process until userspace or the OS takes over. Disable all
unnecessary watchdog devices in U-Boot to avoid conflicts
during CPU bring-up.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>

arch/arm/dts/k3-am62a7-phyboard-lyra-rdk-u-boot.dtsi

@@ -156,6 +156,22 @@
 	bootph-all;
 };
 
+&main_rti1 {
+	status = "disabled";
+};
+
+&main_rti2 {
+	status = "disabled";
+};
+
+&main_rti3 {
+	status = "disabled";
+};
+
+&main_rti4 {
+	status = "disabled";
+};
+
 &main_uart0 {
 	bootph-all;
 };