ARM: dts: Add MFC clock entries for exynos4

Added MFC related clock entries in exynos4.dtsi file.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos4.dtsi

@@ -160,6 +160,8 @@ mfc: codec@13400000 {
 		reg = <0x13400000 0x10000>;
 		interrupts = <0 94 0>;
 		samsung,power-domain = <&pd_mfc>;
+		clocks = <&clock 170>, <&clock 273>;
+		clock-names = "sclk_mfc", "mfc";
 		status = "disabled";
 	};