net: hns3: split function hclge_update_port_base_vlan_cfg()

mainline inclusion
from mainline-master
commit d25f5edd
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4M1HB
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d25f5eddbe1a



----------------------------------------------------------------------

Currently the function hclge_update_port_base_vlan_cfg() is a
bit long. Split it to several small functions, to improve the
readability.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Yongxin Li <liyongxin1@huawei.com>
Signed-off-by: Junxin Chen <chenjunxin1@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>