[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/include/crypto/null.h b/src/kernel/linux/v4.14/include/crypto/null.h
new file mode 100644
index 0000000..5757c0a
--- /dev/null
+++ b/src/kernel/linux/v4.14/include/crypto/null.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Values for NULL algorithms */
+
+#ifndef _CRYPTO_NULL_H
+#define _CRYPTO_NULL_H
+
+#define NULL_KEY_SIZE		0
+#define NULL_BLOCK_SIZE		1
+#define NULL_DIGEST_SIZE	0
+#define NULL_IV_SIZE		0
+
+struct crypto_skcipher *crypto_get_default_null_skcipher(void);
+void crypto_put_default_null_skcipher(void);
+
+static inline struct crypto_skcipher *crypto_get_default_null_skcipher2(void)
+{
+	return crypto_get_default_null_skcipher();
+}
+
+static inline void crypto_put_default_null_skcipher2(void)
+{
+	crypto_put_default_null_skcipher();
+}
+
+#endif