of: Add vendor prefix for HannStar Display Corporation

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -64,6 +64,7 @@ gmt	Global Mixed-mode Technology, Inc.
 google	Google, Inc.
 gumstix	Gumstix, Inc.
 gw	Gateworks Corporation
+hannstar	HannStar Display Corporation
 haoyu	Haoyu Microelectronic Co. Ltd.
 hisilicon	Hisilicon Limited.
 honeywell	Honeywell