Runs yapf checks first in preupload.

This is the most volatile and therefore should be checked first.

Bug: None
Test: This upload
Change-Id: I16519e2b16a76b71cc2f1af70b61943cd73706ed
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index b76b797..b42665b 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -1,11 +1,11 @@
 [Hook Scripts]
+yapf_hook = ./tools/yapf_checker.py
 create_virtualenv = ./tools/create_virtualenv.sh
 acts_unittests = /tmp/acts_preupload_virtualenv/bin/python3 ./acts/tests/meta/ActsUnitTest.py
 destroy_virtualenv = rm -rf /tmp/acts_preupload_virtualenv/
 
 lab_test = ./tools/lab/lab_upload_hooks.py
 proto_check = ./tools/proto_check.py
-yapf_hook = ./tools/yapf_checker.py
 
 [Builtin Hooks]
 commit_msg_bug_field = true