Added a few tweaks to the performance management cli. Sorting of fields
for non list types (non repeated). Omitted some fields that were likely
not displayed previously for the logical device.

Change-Id: I5ef5e19bca4af97c2e308a3495c02385ef5966bf
diff --git a/cli/logical_device.py b/cli/logical_device.py
index 24508df..9efd6ae 100644
--- a/cli/logical_device.py
+++ b/cli/logical_device.py
@@ -89,6 +89,8 @@
             'ofp_port.advertised',
             'ofp_port.peer',
             'ofp_port.max_speed',
+            'ofp_port.supported',
+            'ofp_port.config'
         }
         print_pb_list_as_table('Logical device ports:', device.ports,
                                omit_fields, self.poutput)