dc390: Use TYPE_DC390_DEVICE constant

This will make future conversion to use OBJECT_DECLARE* easier.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Message-Id: <20200826184334.4120620-9-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

hw/scsi/esp-pci.c

@@ -521,7 +521,7 @@ static void dc390_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo dc390_info = {
-    .name = "dc390",
+    .name = TYPE_DC390_DEVICE,
     .parent = TYPE_AM53C974_DEVICE,
     .instance_size = sizeof(DC390State),
     .class_init = dc390_class_init,