dm: usb: exynos: Enable both EHCI and XHCI on snow

Since we can support both controllers now, enable this in the device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
diff --git a/arch/arm/dts/exynos5250-snow.dts b/arch/arm/dts/exynos5250-snow.dts
index d34ffce..e89a94f 100644
--- a/arch/arm/dts/exynos5250-snow.dts
+++ b/arch/arm/dts/exynos5250-snow.dts
@@ -134,6 +134,7 @@
 
 	ehci@12110000 {
 		samsung,vbus-gpio = <&gpx1 1 GPIO_ACTIVE_HIGH>;
+		status = "okay";
 	};
 
 	xhci@12000000 {