bonding: update LACP activity flag after setting lacp_active

The port's actor_oper_port_state activity flag should be updated immediately
after changing the lacp_active option to reflect the current mode correctly.

Fixes: 3a755cd8 ("bonding: add new option lacp_active")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20250815062000.22220-2-liuhangbin@gmail.com


Signed-off-by: Paolo Abeni <pabeni@redhat.com>