[Feature]Upload Modem source code

Change-Id: Id4294f30faced84d3e6fd6d5e61e1111bf287a37
diff --git a/mcu/service/sst/include/md32_user_init.h b/mcu/service/sst/include/md32_user_init.h
new file mode 100644
index 0000000..0105f9c
--- /dev/null
+++ b/mcu/service/sst/include/md32_user_init.h
@@ -0,0 +1,7 @@
+#ifndef MD32_USER_INIT_H
+#define MD32_USER_INIT_H
+#include "kal_public_api.h"
+
+kal_uint32 MD32_User_Init(void);
+
+#endif /* MD32_USER_INIT_H */
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