dt-bindings: arm: fsl: document VF boards

Document and adjust the compatibles for VF500 and VF600 based boards.
The Toradex Colibri Evaluation Boards use multiple compatibles.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
1 file changed