hp-wmi: fix rfkill memory leak on unload

rfkill_unregister() should always be followed by rfkill_destroy()
In this case, rfkill_destroy was called two times on wifi_rfkill and
never on bluetooth_rfkill.
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/platform/x86/hp-wmi.c

@@ -502,7 +502,7 @@ static int __exit hp_wmi_bios_remove(struct platform_device *device)
 	}
 	if (bluetooth_rfkill) {
 		rfkill_unregister(bluetooth_rfkill);
-		rfkill_destroy(wifi_rfkill);
+		rfkill_destroy(bluetooth_rfkill);
 	}
 	if (wwan_rfkill) {
 		rfkill_unregister(wwan_rfkill);