dt-bindings: vendor-prefixes: document Shenzhen DJN Optronics Technology

Add the vendor prefix for DJN (http://en.djnlcd.com/).

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Luca Weiss <luca@lucaweiss.eu>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250611-fp3-display-v4-1-ef67701e7687@lucaweiss.eu

Author: z3ntu

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -398,6 +398,8 @@ patternProperties:
     description: Diodes, Inc.
   "^dioo,.*":
     description: Dioo Microcircuit Co., Ltd
+  "^djn,.*":
+    description: Shenzhen DJN Optronics Technology Co., Ltd
   "^dlc,.*":
     description: DLC Display Co., Ltd.
   "^dlg,.*":