dt-bindings: Add vendor prefix for GeekBuying.com

Use "geekbuying".

Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 86740d4..2988be9 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -91,6 +91,7 @@
 focaltech	FocalTech Systems Co.,Ltd
 fsl	Freescale Semiconductor
 ge	General Electric Company
+geekbuying	GeekBuying
 GEFanuc	GE Fanuc Intelligent Platforms Embedded Systems, Inc.
 gef	GE Fanuc Intelligent Platforms Embedded Systems, Inc.
 geniatech	Geniatech, Inc.