core/opal.c: sparse cleanup integer as NULL
Fixes:
core/opal.c:418:61: warning: Using plain integer as NULL pointer
@@ -415,7 +415,7 @@ void add_opal_node(void)
opal_event = dt_new(opal_node, "event");
dt_add_property_strings(opal_event, "compatible", "ibm,opal-event");
dt_add_property_cells(opal_event, "#interrupt-cells", 0x1);
- dt_add_property(opal_event, "interrupt-controller", 0, 0);
+ dt_add_property(opal_event, "interrupt-controller", NULL, 0);
add_opal_firmware_node();
add_associativity_ref_point();
