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

Bug: 31072145
Test: make droid checkbuild

Change-Id: I257899fe815855d8cb9763693063b559d5038fb8
diff --git a/tests/Android.mk b/tests/Android.mk
index 07f4f00..910d893 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -17,7 +17,7 @@
 LOCAL_SRC_FILES := $(call all-java-files-under, $(src_dirs))
 
 LOCAL_STATIC_JAVA_LIBRARIES += \
-        mockito-target
+        mockito-target-minus-junit4
 
 LOCAL_PACKAGE_NAME := DialerTests