Use of portable stdlib.h include for malloc function.

Author: cmaglie

src/NvmFlash.cpp

@@ -18,7 +18,8 @@
 ///////////////////////////////////////////////////////////////////////////////
 
 #include <stdint.h>
-#include <malloc.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include <memory>
 #include <iostream>
 #include <exception>