dt-bindings: arm: fsl: add compatible string for Tolino Vision

Add a compatible string for the Tolino Vision eBook reader.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Author: akemnade

Documentation/devicetree/bindings/arm/fsl.yaml

@@ -585,6 +585,7 @@ properties:
               - kobo,aura2
               - kobo,tolino-shine2hd
               - kobo,tolino-shine3
+              - kobo,tolino-vision
               - kobo,tolino-vision5
               - revotics,imx6sl-warp      # Revotics WaRP Board
           - const: fsl,imx6sl