arm64: dts: hip06: Append hns node

There are four ports(2 GE, 2 XGE) in D03 board, append
relevant nodes for them.

Cc: Kejian Yan <yankejian@huawei.com>
Cc: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>