py: Some trivial cosmetic changes, for code style consistency.
diff --git a/py/objboundmeth.c b/py/objboundmeth.c
index 69ae263..6e3c525 100644
--- a/py/objboundmeth.c
+++ b/py/objboundmeth.c
@@ -79,7 +79,7 @@
 }
 #endif
 
-const mp_obj_type_t bound_meth_type = {
+STATIC const mp_obj_type_t mp_type_bound_meth = {
     { &mp_type_type },
     .name = MP_QSTR_bound_method,
 #if MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_DETAILED
@@ -93,7 +93,7 @@
 
 mp_obj_t mp_obj_new_bound_meth(mp_obj_t meth, mp_obj_t self) {
     mp_obj_bound_meth_t *o = m_new_obj(mp_obj_bound_meth_t);
-    o->base.type = &bound_meth_type;
+    o->base.type = &mp_type_bound_meth;
     o->meth = meth;
     o->self = self;
     return o;