dt-bindings: arm: fsl: Add the S32V234-EVB board

Add entry for the NXP S32V234 Customer Evaluation Board to the board/SoC
bindings.
Signed-off-by: Eddy Petrișor <eddy.petrisor@nxp.com>
Signed-off-by: Stefan-Gabriel Mirea <stefan-gabriel.mirea@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Documentation/devicetree/bindings/arm/fsl.yaml

@@ -348,4 +348,10 @@ properties:
               - fsl,ls2088a-rdb
           - const: fsl,ls2088a
 
+      - description: S32V234 based Boards
+        items:
+          - enum:
+              - fsl,s32v234-evb           # S32V234-EVB2 Customer Evaluation Board
+          - const: fsl,s32v234
+
 ...