Update xtrabackup to 2.4

For the updating of MySQL package we need also update
percona-xtrabackup

Closes-Bug: PROD-36708
Change-Id: Iaa860cc3ff348c46d3d5b7ff7c6f2c28a1b248d1
diff --git a/.kitchen.yml b/.kitchen.yml
index 60152f2..0c2ee6e 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -14,15 +14,28 @@
   formula: xtrabackup
   grains:
     noservices: True
+  dependencies:
+    - name: linux
+      repo: git
+      source: https://gerrit.mcp.mirantis.com/salt-formulas/linux.git
+      branch: <%=ENV['GERRIT_BRANCH'] || 'master' %>
+    - name: salt
+      repo: git
+      source: https://gerrit.mcp.mirantis.com/salt-formulas/salt.git
+      branch: <%=ENV['GERRIT_BRANCH'] || 'master' %>
   state_top:
     base:
       "*":
+        - linux
         - xtrabackup
   pillars:
     top.sls:
       base:
         "*":
           - xtrabackup
+          - repo_percona
+  pillars-from-files:
+    repo_percona.sls: tests/pillar/repo_percona.sls
 
 verifier:
   name: inspec