dt-bindings: arm: Add i.MX53 based Menlo board comment

Add comment regarding the i.MX53 based Menlo board.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: devicetree@vger.kernel.org
To: linux-arm-kernel@lists.infradead.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Documentation/devicetree/bindings/arm/fsl.yaml

@@ -172,7 +172,7 @@ properties:
               - karo,tx53                     # Ka-Ro electronics TX53 module
               - kiebackpeter,imx53-ddc        # K+P imx53 DDC
               - kiebackpeter,imx53-hsc        # K+P imx53 HSC
-              - menlo,m53menlo
+              - menlo,m53menlo                # i.MX53 Menlo board
               - voipac,imx53-dmm-668          # Voipac i.MX53 X53-DMM-668
           - const: fsl,imx53