[xcvrd] Save the dom_capability of transceiver into db (zhenggen-xu#72)

Add a field-value pair when it try to set the table inside "post_port_sfp_info_to_db" function

Author: kuanyu99

sonic-xcvrd/tests/test_xcvrd.py

@@ -128,7 +128,8 @@ def test_post_port_dom_threshold_info_to_db(self):
                                                                                 'specification_compliance': '0.7',
                                                                                 'nominal_bit_rate': '0.7',
                                                                                 'application_advertisement': '0.7',
-                                                                                'is_replaceable': '0.7', }))
+                                                                                'is_replaceable': '0.7',
+                                                                                'dom_capability': '0.7', }))
     def test_post_port_sfp_info_to_db(self):
         logical_port_name = "Ethernet0"
         stop_event = threading.Event()
@@ -156,7 +157,8 @@ def test_post_port_sfp_info_to_db(self):
                                                                                 'specification_compliance': '0.7',
                                                                                 'nominal_bit_rate': '0.7',
                                                                                 'application_advertisement': '0.7',
-                                                                                'is_replaceable': '0.7', }))
+                                                                                'is_replaceable': '0.7',
+                                                                                'dom_capability': '0.7', }))
     @patch('xcvrd.xcvrd._wrapper_get_transceiver_dom_threshold_info', MagicMock(return_value={'temphighalarm': '22.75',
                                                                                               'temphighwarning': '0.5',
                                                                                               'templowalarm': '0.7',

sonic-xcvrd/xcvrd/xcvrd.py

@@ -299,6 +299,7 @@ def post_port_sfp_info_to_db(logical_port_name, table, transceiver_dict,
                      ('application_advertisement', port_info_dict['application_advertisement']
                       if 'application_advertisement' in port_info_dict else 'N/A'),
                      ('is_replaceable', str(is_replaceable)),
+                     ('dom_capability',port_info_dict['dom_capability']),
                      ])
                 table.set(port_name, fvs)
             else: