Include parent_id by default in devices

The whole point of devices is to be able to see
a parent of a device. So this patch includes parent id
in the default fields to display for all device-list
commands.

Change-Id: I797ac42adae9b8c5afae5710741dcd8fee68d4c3

cratonclient/shell/v1/devices_shell.py

@@ -23,11 +23,11 @@ DEFAULT_DEVICE_FIELDS = [
     'cloud_id',
     'region_id',
     'cell_id',
+    'parent_id',
 ]
 
 
 DEVICE_FIELDS = DEFAULT_DEVICE_FIELDS + [
-    'parent_id',
     'note',
     'created_at',
     'updated_at',