[airos] updated defaults for pwdog converter

Author: edoput

netjsonconfig/backends/airos/converters.py

@@ -338,7 +338,7 @@ def to_intermediate(self):
             'delay': 300,
             'period': 300,
             'retry': 3,
-            'status': 'enabled',
+            'status': 'disabled',
         })
         return (('pwdog', result),)