devicetree: Add vendor prefix for FriendlyARM

Guangzhou FriendlyARM Computer Tech Co., Ltd is a Chinese ARM board vendor.
Signed-off-by: NJames Pettigrew <james@innovum.com.au>
Reviewed-by: NRask Ingemann Lambertsen <ccc94453@vip.cybercity.dk>
Acked-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -98,6 +98,7 @@ ezchip	EZchip Semiconductor
 fcs	Fairchild Semiconductor
 firefly	Firefly
 focaltech	FocalTech Systems Co.,Ltd
+friendlyarm	Guangzhou FriendlyARM Computer Tech Co., Ltd
 fsl	Freescale Semiconductor
 ge	General Electric Company
 geekbuying	GeekBuying