arm64: dts: ti: k3-am69-sk: Switch MAIN R5F clusters to Split-mode

The TI AM69 SK board has three R5F clusters in the MAIN domain, and all
of these are configured for LockStep mode at the moment. Switch all of
these R5F clusters to Split mode by default to maximize the number of
R5F cores.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
Link: https://lore.kernel.org/r/20240826093024.1183540-8-b-padhi@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>

arch/arm64/boot/dts/ti/k3-am69-sk.dts

@@ -979,6 +979,18 @@
 			<&mcu_r5fss0_core1_memory_region>;
 };
 
+&main_r5fss0 {
+	ti,cluster-mode = <0>;
+};
+
+&main_r5fss1 {
+	ti,cluster-mode = <0>;
+};
+
+&main_r5fss2 {
+	ti,cluster-mode = <0>;
+};
+
 &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,