Android: Enable WNM in the build

Signed-hostap: Jouni Malinen <j@w1.fi>

wpa_supplicant/android.config

@@ -486,6 +486,10 @@ CONFIG_ANDROID_LOG=y
 # IEEE 802.11n (High Throughput) support (mainly for AP mode)
 CONFIG_IEEE80211N=y
 
+# Wireless Network Management (IEEE Std 802.11v-2011)
+# Note: This is experimental and not complete implementation.
+CONFIG_WNM=y
+
 # Interworking (IEEE 802.11u)
 # This can be used to enable functionality to improve interworking with
 # external networks (GAS/ANQP to learn more about the networks and network