switch to using android-base/file.h instead of android-base/test_utils.h

Test: compile
Bug: 119313545
Change-Id: I4f7ad84743e974b4b4d1d7256088f6c8b749a237
diff --git a/libcutils/tests/android_get_control_file_test.cpp b/libcutils/tests/android_get_control_file_test.cpp
index 6c6fd2a..8de8530 100644
--- a/libcutils/tests/android_get_control_file_test.cpp
+++ b/libcutils/tests/android_get_control_file_test.cpp
@@ -23,8 +23,8 @@
 
 #include <string>
 
+#include <android-base/file.h>
 #include <android-base/stringprintf.h>
-#include <android-base/test_utils.h>
 #include <cutils/android_get_control_file.h>
 #include <gtest/gtest.h>