of: Add vendor prefix for iWave Systems Technologies Pvt. Ltd

This patch adds vendor prefix for iWave Systems Technologies Pvt. Ltd.
Website: http://www.iwavesystems.com/Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Chris Paterson <chris.paterson2@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -160,6 +160,7 @@ isee	ISEE 2007 S.L.
 isil	Intersil
 issi	Integrated Silicon Solutions Inc.
 itead	ITEAD Intelligent Systems Co.Ltd
+iwave  iWave Systems Technologies Pvt. Ltd.
 jdi	Japan Display Inc.
 jedec	JEDEC Solid State Technology Association
 karo	Ka-Ro electronics GmbH