sysbus: rename sysbus_init_mmio_region() to sysbus_init_mmio()

Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/hw/pl181.c b/hw/pl181.c
index e13ea8e..46855f6 100644
--- a/hw/pl181.c
+++ b/hw/pl181.c
@@ -453,7 +453,7 @@
     DriveInfo *dinfo;
 
     memory_region_init_io(&s->iomem, &pl181_ops, s, "pl181", 0x1000);
-    sysbus_init_mmio_region(dev, &s->iomem);
+    sysbus_init_mmio(dev, &s->iomem);
     sysbus_init_irq(dev, &s->irq[0]);
     sysbus_init_irq(dev, &s->irq[1]);
     qdev_init_gpio_out(&s->busdev.qdev, s->cardstatus, 2);