ARM: dts: exynos: Update maximum frequency for eMMC to 200MHz on Odroid XU3/XU4

Set the eMMC max-frequency to 200MHz for optimal performance on Odroid
XU3/XU4 family of boards.
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi

@@ -392,6 +392,7 @@ &mmc_0 {
 	cap-mmc-highspeed;
 	mmc-hs200-1_8v;
 	mmc-hs400-1_8v;
+	max-frequency = <200000000>;
 	vmmc-supply = <&ldo18_reg>;
 	vqmmc-supply = <&ldo3_reg>;
 };