Add unit test for importing test utils

Bug: 33111600
Test: Manual execution of script
Change-Id: Ifaacc53edd673ec46449b77e324453a5f69b3af2
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index ba5dbf4..80ac2a1 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -11,6 +11,7 @@
 acts_unittest_suite = ./acts/framework/tests/acts_unittest_suite.py
 acts_utils_test = ./acts/framework/tests/acts_utils_test.py
 acts_host_utils_test = ./acts/framework/tests/acts_host_utils_test.py
+acts_import_test_utils_test = ./acts/framework/tests/acts_import_test_utils_test.py
 
 [Builtin Hooks]
 commit_msg_bug_field = true