ARM: dove: add global-config register node

We share global config registers by syscon node, add it to dove.dtsi.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/dove.dtsi

@@ -613,6 +613,12 @@
 				reg = <0xd8500 0x20>;
 			};
 
+			gconf: global-config@e802c {
+				compatible = "marvell,dove-global-config",
+				             "syscon";
+				reg = <0xe802c 0x14>;
+			};
+
 			gpio2: gpio-ctrl@e8400 {
 				compatible = "marvell,orion-gpio";
 				#gpio-cells = <2>;