ARM: dts: da850-evm: enable cpufreq

Enable cpufreq-dt support for da850-evm. The cvdd is supplied by the
tps65070 pmic with configurable output voltage. By default da850-evm
boards support frequencies up to 375MHz so enable this operating
point.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

arch/arm/boot/dts/da850-evm.dts

@@ -191,6 +191,19 @@
 	};
 };
 
+&cpu {
+	cpu-supply = <&vdcdc3_reg>;
+};
+
+/*
+ * The standard da850-evm kits and SOM's are 375MHz so enable this operating
+ * point by default. Higher frequencies must be enabled for custom boards with
+ * other variants of the SoC.
+ */
+&opp_375 {
+	status = "okay";
+};
+
 &sata {
 	status = "okay";
 };