devicetree: Add vendor prefix for Shenzhen Sunchip Technology Co., Ltd

Shenzhen Sunchip Technology Co., Ltd produces TV boxes and TV dongles,
some of which are sold under other brands. Website:
<URL:http://www.sunchip-tech.com/>
Signed-off-by: Rask Ingemann Lambertsen <ccc94453@vip.cybercity.dk>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -254,6 +254,7 @@ starry	Starry Electronic Technology (ShenZhen) Co., LTD
 startek	Startek
 ste	ST-Ericsson
 stericsson	ST-Ericsson
+sunchip	Shenzhen Sunchip Technology Co., Ltd
 SUNW	Sun Microsystems, Inc
 syna	Synaptics Inc.
 synology	Synology, Inc.