Fixed typo in InnoDB when compiling with VALGRIND

storage/innobase/include/read0types.h

@@ -290,7 +290,7 @@ class ReadView: public ReadViewBase
     MEM_UNDEFINED(&m_mutex, sizeof m_mutex);
 #endif
 #ifdef HAVE_valgrind
-    MEM_MAKE_VALID(&m_mutex, sizeof m_mutex);
+    MEM_MAKE_DEFINED(&m_mutex, sizeof m_mutex);
 #endif
   }
 };