Compile dexmaker-tests

Parse dexmaker-tests/Android.mk.  Builds but the tests all fail.

Test: builds
Change-Id: I1c3ebccaeab35a9c69857bb949db5300732c2521
diff --git a/Android.mk b/Android.mk
index e7645ef..fc13fa2 100644
--- a/Android.mk
+++ b/Android.mk
@@ -46,3 +46,5 @@
     dexmaker-dex-target:lib/libcore-dex-2$(COMMON_JAVA_PACKAGE_SUFFIX) \
 
 include $(BUILD_MULTI_PREBUILT)
+
+include $(call all-makefiles-under, $(LOCAL_PATH))