of: Add Okaya Electric America vendor prefix

This patch adds vendor prefix for Okaya Electronic America, a provider
of LCD modules and display technologies.

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index d444757..bf529e7 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -148,6 +148,7 @@
 nokia	Nokia
 nvidia	NVIDIA
 nxp	NXP Semiconductors
+okaya	Okaya Electric America, Inc.
 onnn	ON Semiconductor Corp.
 opencores	OpenCores.org
 ortustech	Ortus Technology Co., Ltd.