net/hns3: fix input parameters of MAC functions

net/hns3: fix input parameters of MAC functions

When adding multicast and unicast MAC addresses, three descriptors and
one descriptor are required for querying or adding MAC VLAN table,
respectively. This patch uses the number of descriptors as input
parameter to complete this task to make the function more secure.

Fixes: 7d7f9f80bbfb ("net/hns3: support MAC address related operations")
Cc: stable@dpdk.org
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>