Added temporary #ifdef WEXT_MFP_PENDING around the MFP changes

Just in case, do not use the not-yet-approved WEXT changes even if someone
where to build wpa_supplicant with IEEE 802.11w support unless this new
macro has been defined explicitly.

src/drivers/driver_wext.c

@@ -1800,11 +1800,13 @@ static int wpa_driver_wext_set_key_ext(void *priv, wpa_alg alg,
 	case WPA_ALG_PMK:
 		ext->alg = IW_ENCODE_ALG_PMK;
 		break;
+#ifdef WEXT_MFP_PENDING
 #ifdef CONFIG_IEEE80211W
 	case WPA_ALG_IGTK:
 		ext->alg = IW_ENCODE_ALG_AES_CMAC;
 		break;
 #endif /* CONFIG_IEEE80211W */
+#endif /* WEXT_MFP_PENDING */
 	default:
 		wpa_printf(MSG_DEBUG, "%s: Unknown algorithm %d",
 			   __FUNCTION__, alg);
@@ -2158,6 +2160,7 @@ int wpa_driver_wext_associate(void *priv,
 					   IW_AUTH_RX_UNENCRYPTED_EAPOL,
 					   allow_unencrypted_eapol) < 0)
 		ret = -1;
+#ifdef WEXT_MFP_PENDING
 #ifdef CONFIG_IEEE80211W
 	switch (params->mgmt_frame_protection) {
 	case NO_MGMT_FRAME_PROTECTION:
@@ -2173,6 +2176,7 @@ int wpa_driver_wext_associate(void *priv,
 	if (wpa_driver_wext_set_auth_param(drv, IW_AUTH_MFP, value) < 0)
 		ret = -1;
 #endif /* CONFIG_IEEE80211W */
+#endif /* WEXT_MFP_PENDING */
 	if (params->freq && wpa_driver_wext_set_freq(drv, params->freq) < 0)
 		ret = -1;
 	if (wpa_driver_wext_set_ssid(drv, params->ssid, params->ssid_len) < 0)