Fix default value for getting parameters._param in reclass.py

The default value in node_list method was incorrectly set to [] by default,
hovewer lather in code assumes that value is a dictionary.


Related-Prod: PROD-28227

Change-Id: Ied08eb9d7b7ffdbddad40a31dfdc7ccee4287107
diff --git a/_modules/reclass.py b/_modules/reclass.py
index 46b2b86..e9880c5 100644
--- a/_modules/reclass.py
+++ b/_modules/reclass.py
@@ -364,7 +364,7 @@
                 file_read = yaml.load(file_handle.read())
             file_data = file_read or {}
             classes = file_data.get('classes', [])
-            parameters = file_data.get('parameters', {}).get('_param', [])
+            parameters = file_data.get('parameters', {}).get('_param', {})
             name = fl.replace('.yml', '')
             host_name = name.split('.')[0]
             domain_name = '.'.join(name.split('.')[1:])