of: add vendor prefix for Chipidea

Adds chipidea to the list of DT vendor prefixes.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
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 5fba8c0..114bfe6 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -29,6 +29,7 @@
 capella	Capella Microsystems, Inc
 cavium	Cavium, Inc.
 cdns	Cadence Design Systems Inc.
+chipidea	Chipidea, Inc
 chrp	Common Hardware Reference Platform
 chunghwa	Chunghwa Picture Tubes Ltd.
 cirrus	Cirrus Logic, Inc.