dt-bindings: cp110: introduce a new binding

This patch updates the documentation according to the change made in the
patch "pinctrl: dt-bindings: cp110: introduce a new binding".
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com>

Documentation/devicetree/bindings/arm/marvell/cp110-system-controller0.txt

@@ -7,6 +7,13 @@ Controller 0 and System Controller 1. This Device Tree binding allows
 to describe the first system controller, which provides registers to
 configure various aspects of the SoC.
 
+For the top level node:
+ - compatible: must be: "syscon", "simple-mfd";
+ - reg: register area of the CP110 system controller 0
+
+Clocks:
+-------
+
 The Device Tree node representing this System Controller 0 provides a
 number of clocks:
 
@@ -56,14 +63,17 @@ The following clocks are available:
 Required properties:
 
  - compatible: must be:
-     "marvell,cp110-system-controller0", "syscon";
- - reg: register area of the CP110 system controller 0
+     "marvell,cp110-clock"
  - #clock-cells: must be set to 2
 
 Example:
 
 	cpm_syscon0: system-controller@440000 {
-		compatible = "marvell,cp110-system-controller0", "syscon";
+		compatible = "syscon", "simple-mfd";
 		reg = <0x440000 0x1000>;
+
+		cpm_clk: clock {
+			compatible = "marvell,cp110-clock";
 			#clock-cells = <2>;
 		};
+	};