Declare jack, jill and libs for prebuilt android.jar

Change-Id: I41c5f0d6dae269d0b535fcb868a850e80ccb8682
diff --git a/tools/Android.mk b/tools/Android.mk
index 7e4a2ee..2f18f5a 100644
--- a/tools/Android.mk
+++ b/tools/Android.mk
@@ -16,6 +16,31 @@
 
 LOCAL_PATH:= $(call my-dir)
 
+##################################
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := jack
+LOCAL_SRC_FILES := jack.jar
+LOCAL_MODULE_CLASS := JAVA_LIBRARIES
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_SUFFIX := $(COMMON_JAVA_PACKAGE_SUFFIX)
+LOCAL_BUILT_MODULE_STEM := jack$(COMMON_JAVA_PACKAGE_SUFFIX)
+LOCAL_IS_HOST_MODULE := true
+
+include $(BUILD_PREBUILT)
+##################################
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := jill
+LOCAL_SRC_FILES := jill.jar
+LOCAL_MODULE_CLASS := JAVA_LIBRARIES
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_SUFFIX := $(COMMON_JAVA_PACKAGE_SUFFIX)
+LOCAL_BUILT_MODULE_STEM := jill$(COMMON_JAVA_PACKAGE_SUFFIX)
+LOCAL_IS_HOST_MODULE := true
+
+include $(BUILD_PREBUILT)
+
 ifneq (,$(TARGET_BUILD_APPS)$(filter true,$(TARGET_BUILD_PDK)))
 
 ##################################