DT: Add vendor prefix for Emerging Display Technologies

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 7f3977d..346b863 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -26,6 +26,7 @@
 dallas	Maxim Integrated Products (formerly Dallas Semiconductor)
 davicom	DAVICOM Semiconductor, Inc.
 denx	Denx Software Engineering
+edt	Emerging Display Technologies
 emmicro	EM Microelectronic
 epfl	Ecole Polytechnique Fédérale de Lausanne
 epson	Seiko Epson Corp.