ARM: dts: Add CPU OPP and regulator supply property for exynos3250

This patch add CPU operating points which include CPU frequency and
regulator voltage to use generic cpufreq drivers.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
index 031853b..ddd7ac2 100644
--- a/arch/arm/boot/dts/exynos3250-rinato.dts
+++ b/arch/arm/boot/dts/exynos3250-rinato.dts
@@ -132,6 +132,10 @@
 	};
 };
 
+&cpu0 {
+	cpu0-supply = <&buck2_reg>;
+};
+
 &exynos_usbphy {
 	status = "okay";
 };