net/hns3: rename multicast address function
net/hns3: rename multicast address function

This patch renames hns3_add_mc_addr() to hns3_add_mc_mac_addr().

Signed-off-by: Huisong Li <6909b08cc600214438d1cc25e31062c8d1c2efdc@huawei.com>

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