Switch virtual labs to Salt 2017.7

Change-Id: I2c08014f08cc08ed3cd869adc186974f11c6d313
diff --git a/classes/cluster/k8s-compact/infra/init.yml b/classes/cluster/k8s-compact/infra/init.yml
index 6d5cb21..e0bae0e 100755
--- a/classes/cluster/k8s-compact/infra/init.yml
+++ b/classes/cluster/k8s-compact/infra/init.yml
@@ -1,6 +1,6 @@
 classes:
 - system.linux.system.repo.mcp.extra
-- system.linux.system.repo.mcp.salt
+- system.linux.system.repo.mcp.apt_mirantis.saltstack
 - system.salt.master.pkg
 - system.salt.minion.ca.salt_master
 - system.salt.master.api