Fixed erronously removed macros

Author: ericxu233

include/acl_util.h

@@ -115,6 +115,16 @@ void acl_dump_mem(cl_mem mem);
 #define acl_dump_mem(x)
 #endif
 /////////////////////
+#define RETURN(ret)                                                            \
+  do {                                                                         \
+    return (ret);                                                              \
+  } while (0)
+
+#define RETURN_VOID                                                            \
+  do {                                                                         \
+    return;                                                                    \
+  } while (0)
+
 #define UNLOCK_RETURN(ret)                                                     \
   do {                                                                         \
     acl_unlock();                                                              \