dt-bindings: Add vendor prefix for csky

Add csky vendor definition.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Guo Ren 2018-09-12 21:03:06 +08:00
commit f746650f9c