dt-bindings: vendor-prefixes: Add an entry for OpenEmbed

Add "openembed" entry for https://www.openembed.com/Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -830,6 +830,8 @@ patternProperties:
     description: Opal Kelly Incorporated
   "^opencores,.*":
     description: OpenCores.org
+  "^openembed,.*":
+    description: OpenEmbed
   "^openrisc,.*":
     description: OpenRISC.io
   "^option,.*":