ARM: mvebu: Correct unit address for linksys

The USB2 port for Armada 38x is defined to be at 58000, not at
50000.

Cc: <stable@vger.kernel.org>
Fixes: 2d0a7add ("ARM: Kirkwood: Add support for many Synology NAS devices")
Signed-off-by: NPatrick Uiterwijk <patrick@puiterwijk.org>
Acked-by: NImre Kaloz <kaloz@openwrt.org>
Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm/boot/dts/armada-385-linksys.dtsi

@@ -117,7 +117,7 @@
 			};
 
 			/* USB part of the eSATA/USB 2.0 port */
-			usb@50000 {
+			usb@58000 {
 				status = "okay";
 			};