Mark cc_test as not gtest since they are not gtest

Change-Id: Id923a7aa04d4341a833683333101eae0324eeec2
Test: None
Bug: 179092189
diff --git a/libnativeloader/test/Android.bp b/libnativeloader/test/Android.bp
index 60c9f3c..f12c04d 100644
--- a/libnativeloader/test/Android.bp
+++ b/libnativeloader/test/Android.bp
@@ -81,4 +81,5 @@
         "api_test.c",
     ],
     header_libs: ["libnativeloader-headers"],
+    gtest: false,
 }