dt-bindings: arm: fsl: add GE B1x5pv2 boards

Document the compatible for GE B1x5pv2 boards.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Documentation/devicetree/bindings/arm/fsl.yaml

@@ -401,6 +401,17 @@ properties:
           - const: armadeus,imx6dl-apf6         # APF6 (Solo) SoM
           - const: fsl,imx6dl
 
+      - description: i.MX6DL based congatec QMX6 Boards
+        items:
+          - enum:
+              - ge,imx6dl-b105v2          # General Electric B105v2
+              - ge,imx6dl-b105pv2         # General Electric B105Pv2
+              - ge,imx6dl-b125v2          # General Electric B125v2
+              - ge,imx6dl-b125pv2         # General Electric B125Pv2
+              - ge,imx6dl-b155v2          # General Electric B155v2
+          - const: congatec,qmx6
+          - const: fsl,imx6dl
+
       - description: i.MX6DL based DFI FS700-M60-6DL Board
         items:
           - const: dfi,fs700-m60-6dl