eap_method::init_for_reauth field

init_for_reauth - Prepare for start of fast re-authentication @sm: Pointer to EAP state machine allocated with eap_peer_sm_init() @priv: Pointer to private EAP method data from eap_method::init() This function is an optional handler that only EAP methods supporting fast re-authentication need to implement. This is called when EAP authentication is started and EAP state machine is requesting fast re-authentication to be used.