Move XOS back to port 80 on head node

Change-Id: I7857edfef6006b5504cdf886a62f578560e20cb3
(cherry picked from commit 44b701346cf05e351689757c7f60bf4dd3a43f41)
diff --git a/roles/config-virt/files/qemu b/roles/config-virt/files/qemu
index 824816f..451cdda 100644
--- a/roles/config-virt/files/qemu
+++ b/roles/config-virt/files/qemu
@@ -33,7 +33,7 @@
     XOS=$( getent hosts xos | awk '{print $1}' )
     if [ -n "$XOS" ]
     then
-	add_port_fwd_rule 8888 $XOS 80
+	add_port_fwd_rule 80 $XOS 80
     fi
     add_rule "filter" "FORWARD" "-p tcp --dport 80 -j ACCEPT"
 fi