package/wpa_supplicant: enable interface matching option

The new wpa_supplicant command line argument -M can be used to describe
matching rules with a wildcard interface name (e.g., "wlan*").

This is very useful for systems without udev.

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/wpa_supplicant/wpa_supplicant.mk

@@ -28,7 +28,8 @@ WPA_SUPPLICANT_CONFIG_ENABLE = \
 	CONFIG_IEEE80211N	\
 	CONFIG_IEEE80211R	\
 	CONFIG_INTERNAL_LIBTOMMATH \
-	CONFIG_DEBUG_FILE
+	CONFIG_DEBUG_FILE \
+	CONFIG_MATCH_IFACE
 
 WPA_SUPPLICANT_CONFIG_DISABLE = \
 	CONFIG_SMARTCARD