Avoid JUnit4 collision in android-support-test, mockito-target

Bug: 31072145
Test: make droid checkbuild

Change-Id: Id3c0c66de8d82418f7ae2ac4b72607956f56f0c3
diff --git a/tests/Android.mk b/tests/Android.mk
index 59cba42..322dad2 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -31,6 +31,6 @@
 
 LOCAL_STATIC_JAVA_LIBRARIES := \
         android-support-test \
-        mockito-target
+        mockito-target-minus-junit4
 
 include $(BUILD_PACKAGE)