[mpp_mem]: fix realloc function

git-svn-id: https://10.10.10.66:8443/svn/MediaProcessPlatform/trunk/mpp@175 6e48237b-75ef-9749-8fc9-41990f28c85a

osal/mpp_mem.cpp

@@ -127,7 +127,7 @@ void *mpp_osal_realloc(const char *tag, void *ptr, size_t size)
             }
         }
     } else {
-        ret = realloc(ptr, size);
+        os_realloc(ptr, &ret, RK_OSAL_MEM_ALIGN, size);
     }
 
     if (NULL == ret)