Add mbtk_source git commit info

Change-Id: I9867613657db269bba81d28c4b3712062ae41bdd
diff --git a/mbtk/libmbtk_ftp/mbtk_ftp.c b/mbtk/libmbtk_ftp/mbtk_ftp.c
index 2821087..f485ec7 100755
--- a/mbtk/libmbtk_ftp/mbtk_ftp.c
+++ b/mbtk/libmbtk_ftp/mbtk_ftp.c
@@ -3055,4 +3055,8 @@
     return FTP_ERR_SUCCESS;
 }
 
+void mbtk_ftp_lib_info_print()
+{
+    MBTK_SOURCE_INFO_PRINT("mbtk_ftp_lib");
+}