network: enter initialized state when the interface will be reconfigured

network: enter initialized state when the interface will be reconfigured

When the interface is in the failed state, link_getlink_handler_internal()
will do nothing and return zero, thus the interface will not be
reconfigured, especially when the reconfiguration is triggered in
link_enter_failed().

Follow-up for c2eb7753dd47ec04ae0d66400e70bc87fbf1adcc.