net/hns3: fix data overwriting during register dump

net/hns3: fix data overwriting during register dump

The data pointer has not moved after BAR register dumped. This causes
the later register to overwrite the previous data.

This patch fix the overwriting by move the pointer after every dump
function. And the missing separator between 32-bit register and the
64-bit register is also added to avoid a parsing error.

Fixes: 936eda25e8da ("net/hns3: support dump register")
Cc: stable@dpdk.org
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>