ARM: dts: berlin: enable USB on the Google Chromecast

Enable usb1 on Google Chromecast which is connected to micro-USB
plug used for external power supply, too.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

arch/arm/boot/dts/berlin2cd-google-chromecast.dts

@@ -53,3 +53,7 @@ &sdhci0 {
 };
 
 &uart0 { status = "okay"; };
+
+&usb_phy1 { status = "okay"; };
+
+&usb1 { status = "okay"; };