Modified OpenStack build settings for mirror-image

Change-Id: Ie59ff1de60f4807a9b39b358834f19cbfac0b652
diff --git a/mirror-image/scripts/salt.sh b/mirror-image/scripts/salt.sh
index 9c8a837..879c250 100644
--- a/mirror-image/scripts/salt.sh
+++ b/mirror-image/scripts/salt.sh
@@ -10,5 +10,6 @@
 salt-call -t 5 --retcode-passthrough --no-color state.sls linux.system.file
 salt-call -t 5 --retcode-passthrough --no-color state.sls docker.host
 salt-call -t 5 --retcode-passthrough --no-color state.sls docker exclude=docker.client.registry
+sleep 120
 salt-call -t 5 --retcode-passthrough --no-color state.sls linux.network
 salt-call -t 5 --retcode-passthrough --no-color state.sls nginx