dt-bindings: marvell: Declare the CN913x SoC compatibles

Describe the compatible properties for the new Marvell SoCs:
* CN9130: 1x AP807-quad + 1x CP115 (1x embedded)
* CN9131: 1x AP807-quad + 2x CP115 (1x embedded + 1x modular)
* CN9132: 1x AP807-quad + 3x CP115 (1x embedded + 2x modular)

CP115 are similar to CP110 in terms of features.

There are three development boards based on these SoCs:
* CN9130-DB: comes as a single mother board (with the CP115 bundled)
* CN9131-DB: same as CN9130-DB with one additional modular CP115
* CN9132-DB: same as CN9130-DB with two additional modular CP115
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

Documentation/devicetree/bindings/arm/marvell/armada-7k-8k.yaml

@@ -38,3 +38,24 @@ properties:
           - const: marvell,armada8040
           - const: marvell,armada-ap806-quad
           - const: marvell,armada-ap806
+
+      - description: Armada CN9130 SoC with no external CP
+        items:
+          - const: marvell,cn9130
+          - const: marvell,armada-ap807-quad
+          - const: marvell,armada-ap807
+
+      - description: Armada CN9131 SoC with one external CP
+        items:
+          - const: marvell,cn9131
+          - const: marvell,cn9130
+          - const: marvell,armada-ap807-quad
+          - const: marvell,armada-ap807
+
+      - description: Armada CN9132 SoC with two external CPs
+        items:
+          - const: marvell,cn9132
+          - const: marvell,cn9131
+          - const: marvell,cn9130
+          - const: marvell,armada-ap807-quad
+          - const: marvell,armada-ap807