Use flattened APEX packages in ART Buildbot targets.
am: 3f590b6b44

Change-Id: Ife1e705d9f45fb6cb05b35475095c050238c4a64
diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index 61276d8..f2dfec8 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -20,3 +20,7 @@
 TARGET_NO_KERNEL := true
 
 TARGET_CPU_SMP := true
+
+# Flatten APEX packages to make them simpler to use in
+# ART testing/benchmarking environments.
+TARGET_FLATTEN_APEX := true