Clear RSN preauth and PMKSA cache state on FLUSH command

There is no need for this state to maintained when the wpa_supplicant
FLUSH ctrl_iface command is used to request flushing of all state.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

wpa_supplicant/ctrl_iface.c

@@ -5967,6 +5967,9 @@ static void wpa_supplicant_ctrl_iface_flush(struct wpa_supplicant *wpa_s)
 	wpa_s->conf->auto_interworking = 0;
 	wpa_s->conf->okc = 0;
 
+	wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
+	rsn_preauth_deinit(wpa_s->wpa);
+
 	wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, 43200);
 	wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, 70);
 	wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, 60);