Add vendor prefix for Beijing Galaxy-CAS Technology Co., Ltd. (GXCAS).
The prefix was confirmed from the manufacturer's website:
https://www.gxcas.com/en/index.html

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Zaixiang Xu <zaixiang.xu.dev@gmail.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index ee7fd3cfe203..354836eb8e72 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -676,6 +676,8 @@ patternProperties:
     description: Gateworks Corporation
                  use "gateworks" vendor prefix
     deprecated: true
+  "^gxcas,.*":
+    description: Beijing Galaxy-CAS Technology Co., Ltd.
   "^hannstar,.*":
     description: HannStar Display Corporation
   "^haochuangyi,.*":
-- 
2.34.1