Prefix ARRAY_SIZE with micropython prefix MP_
diff --git a/py/modmath.c b/py/modmath.c
index 0fd583c..ff6129c 100644
--- a/py/modmath.c
+++ b/py/modmath.c
@@ -172,8 +172,8 @@
     .map = {
         .all_keys_are_qstrs = 1,
         .table_is_fixed_array = 1,
-        .used = ARRAY_SIZE(mp_module_math_globals_table),
-        .alloc = ARRAY_SIZE(mp_module_math_globals_table),
+        .used = MP_ARRAY_SIZE(mp_module_math_globals_table),
+        .alloc = MP_ARRAY_SIZE(mp_module_math_globals_table),
         .table = (mp_map_elem_t*)mp_module_math_globals_table,
     },
 };