Switch virtual labs to Salt 2017.7

Change-Id: I2c08014f08cc08ed3cd869adc186974f11c6d313
diff --git a/classes/cluster/virtual-offline-ssl/openstack/share.yml b/classes/cluster/virtual-offline-ssl/openstack/share.yml
index dc8eaaf..3156eb1 100644
--- a/classes/cluster/virtual-offline-ssl/openstack/share.yml
+++ b/classes/cluster/virtual-offline-ssl/openstack/share.yml
@@ -3,7 +3,7 @@
 - system.linux.system.repo_local.mcp.apt_mirantis.ubuntu
 - system.linux.system.repo_local.mcp.apt_mirantis.openstack
 - system.linux.system.repo_local.mcp.extra
-- system.linux.system.repo_local.mcp.apt_mirantis.saltstack_2016_3
+- system.linux.system.repo_local.mcp.apt_mirantis.saltstack
 - system.linux.storage.loopback_manila
 - system.manila.share
 - system.manila.share.backend.lvm