fix the generation of the vcd trace using mutex

src/po_hi_protected.c

@@ -62,15 +62,15 @@ int __po_hi_protected_init ()
 
 int __po_hi_protected_lock (__po_hi_protected_t protected_id)
 {
-   __PO_HI_INSTRUMENTATION_VCD_WRITE("1w%d\n", protected_id);
+   //__PO_HI_INSTRUMENTATION_VCD_WRITE("1w%d\n", protected_id);
    if (__po_hi_mutex_lock (&__po_hi_protected_mutexes[protected_id]) != __PO_HI_SUCCESS )
    {
-      __PO_HI_INSTRUMENTATION_VCD_WRITE("0w%d\n", protected_id);
+      //__PO_HI_INSTRUMENTATION_VCD_WRITE("0w%d\n", protected_id);
       __PO_HI_DEBUG_CRITICAL ("[PROTECTED] Error when lock protected resource %d\n", protected_id);
       return __PO_HI_ERROR_PROTECTED_LOCK;
    }
-   __PO_HI_INSTRUMENTATION_VCD_WRITE("0w%d\n", protected_id);
-   __PO_HI_INSTRUMENTATION_VCD_WRITE("1l%d\n", protected_id);
+   //__PO_HI_INSTRUMENTATION_VCD_WRITE("0w%d\n", protected_id);
+   //__PO_HI_INSTRUMENTATION_VCD_WRITE("1l%d\n", protected_id);
 
    return __PO_HI_SUCCESS;
 }