dt-bindings: vendor-prefixes: add GOcontroll

GOcontroll produces embedded linux systems and IO modules to use in
these systems, add its prefix.

Acked-by: Rob Herring (Arm) <[e-mail]>
Signed-off-by: Maud Spierings <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

Documentation/devicetree/bindings/vendor-prefixes.yaml

···
     description: GlobalTop Technology, Inc.
   "^gmt,.*":
     description: Global Mixed-mode Technology, Inc.
+  "^gocontroll,.*":
+    description: GOcontroll Modular Embedded Electronics B.V.
   "^goldelico,.*":
     description: Golden Delicious Computers GmbH & Co. KG
   "^goodix,.*":