Keep most recently connection network flag

Bug: 150799593
Test: atest com.net.android.wifi
Change-Id: I83fe6913b32459a90bf4ebb08b6f24cd01c4d01b

wifi/java/android/net/wifi/WifiConfiguration.java

@@ -2356,6 +2356,8 @@ public class WifiConfiguration implements Parcelable {
         sbuf.append(" lcuid=" + lastConnectUid);
         sbuf.append(" allowAutojoin=" + allowAutojoin);
         sbuf.append(" noInternetAccessExpected=" + noInternetAccessExpected);
+        sbuf.append(" mostRecentlyConnected=" + isMostRecentlyConnected);
+
         sbuf.append(" ");
 
         if (this.lastConnected != 0) {
@@ -2964,4 +2966,11 @@ public class WifiConfiguration implements Parcelable {
         return mPasspointUniqueId;
     }
 
+    /**
+     * If network is one of the most recently connected.
+     * For framework internal use only. Do not parcel.
+     * @hide
+     */
+    public boolean isMostRecentlyConnected = false;
+
 }