aspeed_soc: Propagate silicon-rev to watchdog

This is required to configure differences in behaviour between the
AST2400 and AST2500 watchdog IPs.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/aspeed_soc.c

@@ -183,6 +183,8 @@ static void aspeed_soc_init(Object *obj)
         object_initialize(&s->wdt[i], sizeof(s->wdt[i]), TYPE_ASPEED_WDT);
         object_property_add_child(obj, "wdt[*]", OBJECT(&s->wdt[i]), NULL);
         qdev_set_parent_bus(DEVICE(&s->wdt[i]), sysbus_get_default());
+        qdev_prop_set_uint32(DEVICE(&s->wdt[i]), "silicon-rev",
+                                    sc->info->silicon_rev);
     }
 
     object_initialize(&s->ftgmac100, sizeof(s->ftgmac100), TYPE_FTGMAC100);