ARM: dts: dra7-evm: add smps123 supply for CPU

regulator smps123 supply from Palmas PMIC powers CPU0 on DRA7 EVM.

[nm@ti.com: rebase to latest]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>

arch/arm/boot/dts/dra7-evm.dts

@@ -269,3 +269,7 @@ &mmc2 {
 	vmmc-supply = <&mmc2_3v3>;
 	bus-width = <8>;
 };
+
+&cpu0 {
+	cpu0-supply = <&smps123_reg>;
+};

arch/arm/boot/dts/dra7.dtsi

@@ -37,7 +37,7 @@ cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu@0 {
+		cpu0: cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a15";
 			reg = <0>;