Order mechanism_drivers list

The list of networking mechanism driver entrypoints should be ordered
to ensure sriovnicswitch is listed first, followed by opendaylight.

Change-Id: I05fdfceef13d3051d2bac5bfd624b52b2606778d
Closes-Bug: PROD-20883
diff --git a/tests/pillar/control_opendaylight.sls b/tests/pillar/control_opendaylight.sls
index 174790e..9064406 100644
--- a/tests/pillar/control_opendaylight.sls
+++ b/tests/pillar/control_opendaylight.sls
@@ -59,6 +59,7 @@
       mechanism:
         ovs:
           driver: opendaylight
+          order: 77
 linux:
   system:
     enabled: true