dt-bindings: qoriq-clock: add LS1043A/LS1046A/LS2080A compatible for clockgen

Adds compatible for SoCs which use clockgen, the SoCs are LS1043A,
LS1046A, LS2080A.

Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Documentation/devicetree/bindings/clock/qoriq-clock.txt

@@ -32,6 +32,9 @@ Required properties:
 	* "fsl,b4420-clockgen"
 	* "fsl,b4860-clockgen"
 	* "fsl,ls1021a-clockgen"
+	* "fsl,ls1043a-clockgen"
+	* "fsl,ls1046a-clockgen"
+	* "fsl,ls2080a-clockgen"
 	Chassis-version clock strings include:
 	* "fsl,qoriq-clockgen-1.0": for chassis 1.0 clocks
 	* "fsl,qoriq-clockgen-2.0": for chassis 2.0 clocks