dt-bindings: Add Cisco prefix to vendor list

Signed-off-by: Bert Vermeulen <bert@biot.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -229,6 +229,8 @@ patternProperties:
     description: Computadora Industrial Abierta Argentina
   "^cirrus,.*":
     description: Cirrus Logic, Inc.
+  "^cisco,.*":
+    description: Cisco Systems, Inc.
   "^cloudengines,.*":
     description: Cloud Engines, Inc.
   "^cnm,.*":