Use junit-host instead of junit

Bug: 30188076
Test: make checkbuild
Change-Id: I5d3efbfbe3245a631113674bff1b0aabdc9fe8be
diff --git a/tools/preload2/Android.mk b/tools/preload2/Android.mk
index 09d95ff..769db6b 100644
--- a/tools/preload2/Android.mk
+++ b/tools/preload2/Android.mk
@@ -12,7 +12,7 @@
 
 # For JDWP access we use the framework in the JDWP tests from Apache Harmony, for
 # convenience (and to not depend on internal JDK APIs).
-LOCAL_STATIC_JAVA_LIBRARIES += apache-harmony-jdwp-tests-host junit
+LOCAL_STATIC_JAVA_LIBRARIES += apache-harmony-jdwp-tests-host junit-host
 
 LOCAL_MODULE:= preload2