VpnSettings: enable MPPE by default.

Change-Id: I0e8ec0ec4d233081d6b06d14f82e2c56d9ae0642
diff --git a/src/com/android/settings/vpn2/VpnProfile.java b/src/com/android/settings/vpn2/VpnProfile.java
index 24c2f5f..3ee3af0 100644
--- a/src/com/android/settings/vpn2/VpnProfile.java
+++ b/src/com/android/settings/vpn2/VpnProfile.java
@@ -45,7 +45,7 @@
     String dnsServers = "";     // 5
     String searchDomains = "";  // 6
     String routes = "";         // 7
-    boolean mppe = false;       // 8
+    boolean mppe = true;        // 8
     String l2tpSecret = "";     // 9
     String ipsecIdentifier = "";// 10
     String ipsecSecret = "";    // 11