[PATCH] riscv: dts: add OpenPiton RISC-V board dts support

[Leo Liang]

Hi Tianrui,

On Wed, Jul 07, 2021 at 12:02:00PM +0800, Tianrui Wei wrote:
> Previous device tree for OpenPitonemits a warning during compilation,

typo: OpenPiton emits ?

> thus was rejected by Tom. This commit fixes the previous warning and

Tom has actually accepted the patch, so this line could be dropped.

> adds dts to the OpenPiton RISC-V board and added the device tree to
> MAINTAINER file.
> 
> Signed-off-by: Tianrui Wei <tianrui-wei at outlook.com>
> Reported-by: Tom Rini <trini at konsulko.com>
> ---
>  arch/riscv/dts/openpiton-riscv64.dts | 4 ++--
>  board/openpiton/riscv64/MAINTAINERS  | 3 ++-
>  2 files changed, 4 insertions(+), 3 deletions(-)

Otherwise, LGTM.
Reviewed-by: Leo Yu-Chi Liang <ycliang at andestech.com>