Move to dalvik.vm.lib.2 to force default to libart

Bug: 14298175

(cherry picked from commit 3bc8aaad298c98eccff2060667b35fa1505f84e7)

Change-Id: I5c551d6d6f00af5a7b3638e3847950e441414e37
diff --git a/src/com/android/settings/DevelopmentSettings.java b/src/com/android/settings/DevelopmentSettings.java
index d971bd2..229f169 100644
--- a/src/com/android/settings/DevelopmentSettings.java
+++ b/src/com/android/settings/DevelopmentSettings.java
@@ -94,7 +94,7 @@
     private static final String KEEP_SCREEN_ON = "keep_screen_on";
     private static final String BT_HCI_SNOOP_LOG = "bt_hci_snoop_log";
     private static final String SELECT_RUNTIME_KEY = "select_runtime";
-    private static final String SELECT_RUNTIME_PROPERTY = "persist.sys.dalvik.vm.lib.1";
+    private static final String SELECT_RUNTIME_PROPERTY = "persist.sys.dalvik.vm.lib.2";
     private static final String ALLOW_MOCK_LOCATION = "allow_mock_location";
     private static final String HDCP_CHECKING_KEY = "hdcp_checking";
     private static final String HDCP_CHECKING_PROPERTY = "persist.sys.hdcp_checking";