ARM: dts: exynos: Add missing clock and DAI properties to the max98095 node in Snow Chromebook

This patch adds missing clocks, clock-names properties so the CODEC can
properly handle its master clock. Without this change sound on exynos5250-snow
doesn't work.
Missing #sound-dai-cells property is also added so it is possible to specify
the DAI links properly for HDMI audio support.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm/boot/dts/exynos5250-snow.dts

@@ -27,6 +27,9 @@ max98095: codec@11 {
 		reg = <0x11>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&max98095_en>;
+		clocks = <&pmu_system_controller 0>;
+		clock-names = "mclk";
+		#sound-dai-cells = <1>;
 	};
 };