[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/tools/testing/radix-tree/regression.h b/src/kernel/linux/v4.14/tools/testing/radix-tree/regression.h
new file mode 100644
index 0000000..3c8a158
--- /dev/null
+++ b/src/kernel/linux/v4.14/tools/testing/radix-tree/regression.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __REGRESSION_H__
+#define __REGRESSION_H__
+
+void regression1_test(void);
+void regression2_test(void);
+void regression3_test(void);
+
+#endif