proxy_minion fix

Change-Id: I73a4a14734651f6483fae169a2290e9c5b377d76
diff --git a/tests/pillar/minion_proxy.sls b/tests/pillar/minion_proxy.sls
index 1fe1205..d0e81e7 100644
--- a/tests/pillar/minion_proxy.sls
+++ b/tests/pillar/minion_proxy.sls
@@ -1,7 +1,7 @@
 salt:
   minion:
     enabled: true
-    proxy:
+    proxy_minion:
       master: localhost
       device:
         vsrx01.mydomain.local: