ARM: dts: OMAP4: add *reg* property for ocp2scp

*reg* property for ocp2scp was previously obtained from ti,hwmods property.
But that is now explicitly added to the dt node.
Also updated the documentation with *reg* info.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>

Documentation/devicetree/bindings/bus/omap-ocp2scp.txt

@@ -2,9 +2,27 @@
 
 properties:
 - compatible : Should be "ti,omap-ocp2scp"
+- reg : Address and length of the register set for the device
 - #address-cells, #size-cells : Must be present if the device has sub-nodes
 - ranges : the child address space are mapped 1:1 onto the parent address space
 - ti,hwmods : must be "ocp2scp_usb_phy"
 
 Sub-nodes:
 All the devices connected to ocp2scp are described using sub-node to ocp2scp
+
+ocp2scp@4a0ad000 {
+	compatible = "ti,omap-ocp2scp";
+	reg = <0x4a0ad000 0x1f>;
+	#address-cells = <1>;
+	#size-cells = <1>;
+	ranges;
+	ti,hwmods = "ocp2scp_usb_phy";
+
+	subnode1 {
+	...
+	};
+
+	subnode2 {
+	...
+	};
+};

arch/arm/boot/dts/omap4.dtsi

@@ -431,8 +431,9 @@ emif2: emif@4d000000 {
 			hw-caps-temp-alert;
 		};
 
-		ocp2scp {
+		ocp2scp@4a0ad000 {
 			compatible = "ti,omap-ocp2scp";
+			reg = <0x4a0ad000 0x1f>;
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges;