py: Add MICROPY_PY_BUILTINS_REVERSED, disable for minimal ports.
diff --git a/py/mpconfig.h b/py/mpconfig.h
index 4065c68..824ef76 100644
--- a/py/mpconfig.h
+++ b/py/mpconfig.h
@@ -469,6 +469,11 @@
 #define MICROPY_PY_BUILTINS_EXECFILE (0)
 #endif
 
+// Whether to support reversed function(type)
+#ifndef MICROPY_PY_BUILTINS_REVERSED
+#define MICROPY_PY_BUILTINS_REVERSED (1)
+#endif
+
 // Whether to set __file__ for imported modules
 #ifndef MICROPY_PY___FILE__
 #define MICROPY_PY___FILE__ (1)