q800-glue.c: convert to Resettable interface

Convert the GLUE device to 3-phase reset. The legacy method
doesn't do anything that's invalid in the hold phase, so the
conversion is simple and not a behaviour change.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-ID: <20231004083806.757242-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

hw/m68k/q800-glue.c

@@ -166,9 +166,9 @@ static void glue_nmi_release(void *opaque)
     GLUE_set_irq(s, GLUE_IRQ_IN_NMI, 0);
 }
 
-static void glue_reset(DeviceState *dev)
+static void glue_reset_hold(Object *obj)
 {
-    GLUEState *s = GLUE(dev);
+    GLUEState *s = GLUE(obj);
 
     s->ipr = 0;
     s->auxmode = 0;
@@ -223,11 +223,12 @@ static void glue_init(Object *obj)
 static void glue_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
+    ResettableClass *rc = RESETTABLE_CLASS(klass);
     NMIClass *nc = NMI_CLASS(klass);
 
     dc->vmsd = &vmstate_glue;
-    dc->reset = glue_reset;
     device_class_set_props(dc, glue_properties);
+    rc->phases.hold = glue_reset_hold;
     nc->nmi_monitor_handler = glue_nmi;
 }