dt-bindings: arm: fsl: Add support for ZII VF610 SPB4

Add support for ZII VF610 SPB4.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Documentation/devicetree/bindings/arm/fsl.yaml

@@ -192,6 +192,7 @@ properties:
               - zii,vf610scu4-aib  # ZII VF610 SCU4 AIB
               - zii,vf610dtu       # ZII VF610 SSMB DTU Board
               - zii,vf610spu3      # ZII VF610 SSMB SPU3 Board
+              - zii,vf610spb4      # ZII VF610 SPB4 Board
           - const: zii,vf610dev
           - const: fsl,vf610