ARM: dts: exynos: Add UHS-I bus speed support to Odroid XU3/XU4/HC1

Add support for UHS-I bus speed tuning for SDR50, DDR50 and SDR104 to
Odroid XU3/XU4/HC1 family boards.
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm/boot/dts/exynos5422-odroid-core.dtsi

@@ -504,6 +504,9 @@ &mmc_2 {
 	cap-sd-highspeed;
 	vmmc-supply = <&ldo19_reg>;
 	vqmmc-supply = <&ldo13_reg>;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
+	sd-uhs-ddr50;
 };
 
 &nocp_mem0_0 {