arm: dts: k3-j721e-r5: Enable r5fss0 cluster in SPL

Enable MAIN domain r5fss0 cluster and its core0 in R5 spl.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/dts/k3-j721e-r5-common-proc-board-u-boot.dtsi b/arch/arm/dts/k3-j721e-r5-common-proc-board-u-boot.dtsi
index f98be99..526f42e 100644
--- a/arch/arm/dts/k3-j721e-r5-common-proc-board-u-boot.dtsi
+++ b/arch/arm/dts/k3-j721e-r5-common-proc-board-u-boot.dtsi
@@ -13,3 +13,15 @@
 		compatible = "u-boot,fs-loader";
 	};
 };
+
+&main_r5fss0 {
+	u-boot,dm-spl;
+};
+
+&main_r5fss0_core0 {
+	u-boot,dm-spl;
+};
+
+&main_r5fss0_core1 {
+	u-boot,dm-spl;
+};