ARM: dts: imx6: Support Savageboard dual

Common savageboard DT file is used for board support.
Add the vendor name and specify the dtb file for i.MX6Q build.

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 8e2abcb..5b57a52 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -228,6 +228,7 @@
 pixcir  PIXCIR MICROELECTRONICS Co., Ltd
 plathome	Plat'Home Co., Ltd.
 plda	PLDA
+poslab	Poslab Technology Co., Ltd.
 powervr	PowerVR (deprecated, use img)
 pulsedlight	PulsedLight, Inc
 qca	Qualcomm Atheros, Inc.