omap_l4: rename omap_l4_attach_region() to omap_l4_attach()

Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/hw/omap_gptimer.c b/hw/omap_gptimer.c
index 414b98a..7a14519 100644
--- a/hw/omap_gptimer.c
+++ b/hw/omap_gptimer.c
@@ -482,7 +482,7 @@
 
     memory_region_init_io(&s->iomem, &omap_gp_timer_ops, s, "omap.gptimer",
                           omap_l4_region_size(ta, 0));
-    omap_l4_attach_region(ta, 0, &s->iomem);
+    omap_l4_attach(ta, 0, &s->iomem);
 
     return s;
 }