Fix the incorrect field name in EAP wifi network.

The field identity should not be "anonymous_identity".
diff --git a/wifi/java/android/net/wifi/WifiConfiguration.java b/wifi/java/android/net/wifi/WifiConfiguration.java
index 954930e..01bc919 100644
--- a/wifi/java/android/net/wifi/WifiConfiguration.java
+++ b/wifi/java/android/net/wifi/WifiConfiguration.java
@@ -71,7 +71,7 @@
     /** {@hide} */
     public EnterpriseField phase2 = new EnterpriseField("phase2");
     /** {@hide} */
-    public EnterpriseField identity = new EnterpriseField("anonymous_identity");
+    public EnterpriseField identity = new EnterpriseField("identity");
     /** {@hide} */
     public EnterpriseField anonymous_identity = new EnterpriseField("anonymous_identity");
     /** {@hide} */