Update TEST_MAPPING

Test: None
Change-Id: I1967ad4e9bffac73a5da0f75b9f67b59087e219b
diff --git a/TEST_MAPPING b/TEST_MAPPING
new file mode 100644
index 0000000..1e91e7e
--- /dev/null
+++ b/TEST_MAPPING
@@ -0,0 +1,8 @@
+// Generated by update_crate_tests.py for tests that depend on this crate.
+{
+  "presubmit": [
+    {
+      "name": "gdbstub_arch_device_test_src_lib"
+    }
+  ]
+}