dt-bindings: vendor-prefixes: Add Cool Pi

Add vendor prefix for Cool Pi(https://cool-pi.com/)
Signed-off-by: Andy Yan <andyshrk@163.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231212124223.1897314-1-andyshrk@163.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -294,6 +294,8 @@ patternProperties:
     description: CompuLab Ltd.
   "^congatec,.*":
     description: congatec GmbH
+  "^coolpi,.*":
+    description: cool-pi.com
   "^coreriver,.*":
     description: CORERIVER Semiconductor Co.,Ltd.
   "^corpro,.*":