lance: unbreak after memory API conversion

The conversion passed the wrong opaque pointer, causing a crash on first use.
Pass the correct opaque.
Signed-off-by: NAvi Kivity <avi@redhat.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

hw/lance.c

@@ -116,7 +116,7 @@ static int lance_init(SysBusDevice *dev)
     SysBusPCNetState *d = FROM_SYSBUS(SysBusPCNetState, dev);
     PCNetState *s = &d->state;
 
-    memory_region_init_io(&s->mmio, &lance_mem_ops, s, "lance-mmio", 4);
+    memory_region_init_io(&s->mmio, &lance_mem_ops, d, "lance-mmio", 4);
 
     qdev_init_gpio_in(&dev->qdev, parent_lance_reset, 1);