Update asic name mapping in the required dicts

[SuvarnaMeenakshi]

when reading port information from config_db to match with data from
port_config.ini.

Signed-off-by: Suvarna Meenakshi sumeenak@microsoft.com

Why I did it

Update asic name mapping in the required dicts
when reading port information from config_db to match with data from
port_config.ini.
There is a mismatch when retrieving data from port_config.ini and config_db.
This change is to ensure the configuration generated from port_config.ini or config_dbX.json files are the same.
Issue seen: config_db has incorrect interface names as portchannel members also device_neighbor table does not include front end neighbor information.
This change will affect only for multi-asic platform where port_config.ini contains asic_name for each port.

How I did it

if asic_port_name exists in config_db, update the dictionaries with asic_port_name information.

How to verify it

Verified on multi-asic vs testbed. Single asic - no change.
When config_db is not initialized, configuration generated initially will use port_config.ini.
For multi-asic vs (4 asic), the config_db generated for namespace asic0 :

Without the changes ---------------------------------------------- After the changes

    "PORTCHANNEL": {                                                "PORTCHANNEL": {
        "PortChannel102": {                                             "PortChannel102": {
            "members": [                                                    "members": [
                "Eth0-ASIC0",                                 |                 "Ethernet0",
                "Eth1-ASIC0"                                  |                 "Ethernet4"
            ],                                                              ],
            "min_links": "2",                                               "min_links": "2",
            "mtu": "9100",                                                  "mtu": "9100",
            "tpid": "0x8100",                                               "tpid": "0x8100",
            "admin_status": "up"                                            "admin_status": "up"
        },                                                              },
        "PortChannel105": {                                             "PortChannel105": {
            "members": [                                                    "members": [
                "Eth2-ASIC0",                                 |                 "Ethernet8",
                "Eth3-ASIC0"                                  |                 "Ethernet12"
            ],                                                              ],
            "min_links": "2",                                               "min_links": "2",
            "mtu": "9100",                                                  "mtu": "9100",
            "tpid": "0x8100",                                               "tpid": "0x8100",
            "admin_status": "up"                                            "admin_status": "up"
        },                                                              },
    "PORTCHANNEL_MEMBER": {                                         "PORTCHANNEL_MEMBER": {
        "PortChannel102|Eth0-ASIC0": {},                      |         "PortChannel102|Ethernet0": {},
        "PortChannel102|Eth1-ASIC0": {},                      |         "PortChannel102|Ethernet4": {},
        "PortChannel105|Eth2-ASIC0": {},                      |         "PortChannel105|Ethernet8": {},
        "PortChannel105|Eth3-ASIC0": {},                      |         "PortChannel105|Ethernet12": {},
        "PortChannel43|Ethernet-BP8": {},                               "PortChannel43|Ethernet-BP8": {},
        "PortChannel43|Ethernet-BP12": {},                              "PortChannel43|Ethernet-BP12": {},
        "PortChannel42|Ethernet-BP0": {},                               "PortChannel42|Ethernet-BP0": {},
        "PortChannel42|Ethernet-BP4": {}                                "PortChannel42|Ethernet-BP4": {}
    },                                                              },
    "DEVICE_NEIGHBOR": {                                            "DEVICE_NEIGHBOR": {
                                                              >         "Ethernet0": {
                                                              >             "name": "ARISTA01T2",
                                                              >             "port": "Ethernet1"
                                                              >         },
                                                              >         "Ethernet4": {
                                                              >             "name": "ARISTA01T2",
                                                              >             "port": "Ethernet2"
                                                              >         },
                                                              >         "Ethernet8": {
                                                              >             "name": "ARISTA03T2",
                                                              >             "port": "Ethernet1"
                                                              >         },
                                                              >         "Ethernet12": {
                                                              >             "name": "ARISTA03T2",
                                                              >             "port": "Ethernet2"
                                                              >         },
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[abdosi]

can we add unit test ?