[dts] [PATCH V1] fix ring test case, because dpdk remove set_watermark cmdline

[Liu, Yong]

Huilong,
Actually watermark removed from ring structure since 17.05. Please add 
more information like below in your commit log.

commit xxxxxx: ("ring: remove watermark support")

Thanks,
Marvin

On 08/11/2017 02:43 PM, xu,huilong wrote:
> dpdk remove set_watermark cmdline in dpdk17.08
>
> Signed-off-by: xu,huilong<huilongx.xu at intel.com>
> ---