Switch from core to core-libart

Bug: 14298175
Change-Id: I1db40e7c67322d80a108b2b88e6d2e6d275d7898
diff --git a/core/config.mk b/core/config.mk
index 8e22fef..0ecb5c5 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -523,7 +523,7 @@
 
 # allow overriding default Java libraries on a per-target basis
 ifeq ($(TARGET_DEFAULT_JAVA_LIBRARIES),)
-  TARGET_DEFAULT_JAVA_LIBRARIES := core core-junit ext framework framework2
+  TARGET_DEFAULT_JAVA_LIBRARIES := core-libart core-junit ext framework framework2
 endif
 
 TARGET_CPU_SMP ?= true