ARM: dts: Add clock entries to G2D node for exynos4x12

Added clock entries to G2D node for exynos4x12 DT file.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos4x12.dtsi

@@ -69,6 +69,8 @@ g2d@10800000 {
 		compatible = "samsung,exynos4212-g2d";
 		reg = <0x10800000 0x1000>;
 		interrupts = <0 89 0>;
+		clocks = <&clock 177>, <&clock 277>;
+		clock-names = "sclk_fimg2d", "fimg2d";
 		status = "disabled";
 	};
 };