net: hns3: add manager table initialization for hardware

net: hns3: add manager table initialization for hardware

BugLink: http://bugs.launchpad.net/bugs/1756097
The manager table is empty by default. If it is not initialized, the
management pkgs like LLDP will be dropped by hardware. Default entries
need to be added to manager table.

Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit f5aac71c032719ef9159dae10bc83192bddd2424)
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>