net/hns3: adjust some comments
net/hns3: adjust some comments

Fix some error comments and remove some meaningless comments.

Fixes: f8e7fcbfd0b8 ("net/hns3: support flow action of queue region")
Fixes: fcba820d9b9e ("net/hns3: support flow director")
Fixes: c37ca66f2b27 ("net/hns3: support RSS")
Fixes: ec674cb742e5 ("net/hns3: fix flushing RSS rule")
Cc: stable@dpdk.org

Signed-off-by: Lijun Ou <4f660ba6ca3aa3bf060789cece061ff7ba22d4fe@huawei.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk