nl80211: Register read_sta_data() handler for station only builds

This driver_op can now be used in station mode, too, to fetch
information about the connection with the AP, so allow this to be used
even if wpa_supplicant is built without AP mode support.

Change-Id: Ibef1d27ed0e2df312e715a88d500500c661860d1
Signed-hostap: Jouni Malinen <j@w1.fi>
diff --git a/wpa_supplicant/driver_i.h b/wpa_supplicant/driver_i.h
index ee9f6b0..bc148ca 100644
--- a/wpa_supplicant/driver_i.h
+++ b/wpa_supplicant/driver_i.h
@@ -467,7 +467,8 @@
 				      struct hostap_sta_driver_data *sta)
 {
 	if (wpa_s->driver->read_sta_data)
-		return wpa_s->driver->read_sta_data(wpa_s->drv_priv, sta, wpa_s->bssid);
+		return wpa_s->driver->read_sta_data(wpa_s->drv_priv, sta,
+						    wpa_s->bssid);
 	return -1;
 }