ARM64: dts: marvell: armada-37xx: Enable USB2 on espressobin

The Espressobin SBC has a USB2 interface available on J8. Let's
enable it.
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts

@@ -81,6 +81,11 @@
 	status = "okay";
 };
 
+/* J8 */
+&usb2 {
+	status = "okay";
+};
+
 &mdio {
 	switch0: switch0@1 {
 		compatible = "marvell,mv88e6085";