dt-bindings: Add vendor prefix for Overkiz SAS

Overkiz is a smarthome solutions provider, more information on:
https://www.overkiz.comSigned-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Link: https://lore.kernel.org/r/20191011125022.16329-2-kamel.bouhara@bootlin.comAcked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -705,6 +705,8 @@ patternProperties:
     description: Ortus Technology Co., Ltd.
   "^osddisplays,.*":
     description: OSD Displays
+  "^overkiz,.*":
+    description: Overkiz SAS
   "^ovti,.*":
     description: OmniVision Technologies
   "^oxsemi,.*":