arm: total_compute: enable psci

psci is used for system reset

Signed-off-by: Davidson K <davidson.kumaresan@arm.com>
diff --git a/arch/arm/dts/total_compute.dts b/arch/arm/dts/total_compute.dts
index 4399269..96edacd 100644
--- a/arch/arm/dts/total_compute.dts
+++ b/arch/arm/dts/total_compute.dts
@@ -45,4 +45,8 @@
 		clock-frequency = <24000000>;
 		clock-output-names = "bp:clock24mhz";
 	};
+	psci {
+		compatible = "arm,psci-1.0", "arm,psci-0.2";
+		method = "smc";
+	};
 };