of: Add vendor prefix for Advantech Corporation

This patch adds vendor prefix for Advantech Corporation.
Website: http://www.advantech.com/

Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
1 file changed