[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/bsp/lk/lib/rpmb/seclib.h b/src/bsp/lk/lib/rpmb/seclib.h
new file mode 100644
index 0000000..221f6ed
--- /dev/null
+++ b/src/bsp/lk/lib/rpmb/seclib.h
@@ -0,0 +1,2 @@
+unsigned int seclib_get_msg_auth_key(unsigned char *id, unsigned int id_size,
+				     unsigned char *key, unsigned int key_size);