Adding rules to preferences

Because linux formula proccess with rules the rules have to
be added to reclass.

Change-Id: I8955d1cc6c0b97836e7142cb5908fee8034248bc
diff --git a/linux/system/repo/mcp/apt_mirantis/mirantis_pining.yml b/linux/system/repo/mcp/apt_mirantis/mirantis_pining.yml
index cfa9e3c..02b3a8d 100644
--- a/linux/system/repo/mcp/apt_mirantis/mirantis_pining.yml
+++ b/linux/system/repo/mcp/apt_mirantis/mirantis_pining.yml
@@ -8,9 +8,10 @@
       apt:
         preferences:
           enabled: true
-          100:
-            enabled: true
-            name: 'Mirantis origin'
-            pin: 'release o=Mirantis'
-            priority: 1100
-            package: '*'
+          rules:
+            100:
+              enabled: true
+              name: 'Mirantis origin'
+              pin: 'release o=Mirantis'
+              priority: 1100
+              package: '*'