Update list of libraries needed for ART run-test.

Change-Id: Icfaabac9db6ea630ef45f483bfb033ba14cb85b6
diff --git a/tools/public.libraries.buildbot.txt b/tools/public.libraries.buildbot.txt
index 6251da3..4b01796 100644
--- a/tools/public.libraries.buildbot.txt
+++ b/tools/public.libraries.buildbot.txt
@@ -1,3 +1,8 @@
+libart.so
+libartd.so
+libbacktrace.so
 libc.so
+libc++.so
 libdl.so
 libm.so
+libnativehelper.so