qapi: Convert expire_password

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
diff --git a/hmp.h b/hmp.h
index 4ed0fee..575f529 100644
--- a/hmp.h
+++ b/hmp.h
@@ -50,5 +50,6 @@
 void hmp_migrate_set_downtime(Monitor *mon, const QDict *qdict);
 void hmp_migrate_set_speed(Monitor *mon, const QDict *qdict);
 void hmp_set_password(Monitor *mon, const QDict *qdict);
+void hmp_expire_password(Monitor *mon, const QDict *qdict);
 
 #endif