Move proto check in front of the unit tests in the preupload hook

Bug: None
Test: preupload
Change-Id: Icb9ebbf00f42efe260a7175bd8e6094a81a6806a
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index 0e638ac..a9a2123 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -1,11 +1,10 @@
 [Hook Scripts]
 yapf_hook = ./tools/yapf_checker.py
+proto_check = ./tools/proto_check.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/
 
-proto_check = ./tools/proto_check.py
-
 [Builtin Hooks]
 commit_msg_bug_field = true
 jsonlint = true