Flush the BSS (scan) entries when an interface becomes disabled

When an interface becomes disabled (e.g., when RF-kill becomes blocked)
we should clear the stored scan results to avoid maintaining stale
information.

Fix this by flushing the BSS entries when an interface becomes
disabled.

Signed-off-by: Moshe Benji <moshe.benji@intel.com>

wpa_supplicant/events.c

@@ -3959,6 +3959,7 @@ void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
 				wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
 		}
 		wpa_supplicant_mark_disassoc(wpa_s);
+		wpa_bss_flush(wpa_s);
 		radio_remove_works(wpa_s, NULL, 0);
 
 		wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);