contest: virtio: increase setup wait

Looks like we're not giving ourselves enough time for DAD
to reliably finish.

Signed-off-by: Jakub Kicinski <[email protected]>

Author: kuba-moo

contest/scripts/vm-virtio-loop.sh

@@ -29,4 +29,4 @@ ip -netns ns-remote addr add dev eth1 2001:db8::2/64
 export  LOCAL_V6=2001:db8::1
 export REMOTE_V6=2001:db8::2
 
-sleep 1
+sleep 2