dt-bindings: vendor-prefixes: add congatec

Document binding for congatec.
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/vendor-prefixes.yaml

@@ -249,6 +249,8 @@ patternProperties:
     description: Colorful GRP, Shenzhen Xueyushi Technology Ltd.
   "^compulab,.*":
     description: CompuLab Ltd.
+  "^congatec,.*":
+    description: congatec GmbH
   "^coreriver,.*":
     description: CORERIVER Semiconductor Co.,Ltd.
   "^corpro,.*":