Don't hardcode the path of the out dir.

The out dir can be customized.

Bug: 20830920
Change-Id: I19611a48705f692761e41eed4d7324fa2859a3d1

Android.mk

diff --git a/Android.mk b/Android.mk
index 0c1a79e..5524b3e 100644
--- a/Android.mk
+++ b/Android.mk
@@ -34,6 +34,5 @@
 
 setup-tradefed-ref:
 	$(hide) rm -rf $(OUT_DOCS)/online-sac/reference
-	$(hide) cp -R out/target/common/docs/tradefed/reference $(OUT_DOCS)/online-sac
-	$(hide) cp out/target/common/docs/tradefed/navtree_data.js $(OUT_DOCS)/online-sac/navtree_data.js
-
+	$(hide) cp -R $(OUT_DOCS)/tradefed/reference $(OUT_DOCS)/online-sac
+	$(hide) cp $(OUT_DOCS)/tradefed/navtree_data.js $(OUT_DOCS)/online-sac/navtree_data.js