Add missing breaks to {set,get}_address_size domctls.

Signed-off-by: Gerd Hoffmann <kraxel@suse.de>
diff -r ad9bbd103034 xen/arch/x86/domctl.c
--- a/xen/arch/x86/domctl.c	Fri Feb 09 18:19:24 2007 +0000
+++ b/xen/arch/x86/domctl.c	Wed Feb 14 13:25:02 2007 +0100
@@ -398,6 +398,7 @@ long arch_do_domctl(
 
         put_domain(d);
     }
+    break;
 
     case XEN_DOMCTL_get_address_size:
     {
@@ -412,6 +413,7 @@ long arch_do_domctl(
         ret = 0;
         put_domain(d);
     }
+    break;
 
     default:
         ret = -ENOSYS;