Fix sudo sfputil show error-status on a multiasic platform issue

[mlok-nokia]

What I did

Fixed "sudo sfputil show error-status" on a multiasic platform issue. Fixes sonic-net/sonic-buildimage#8504

This change is also applicable to 202205 branch

How I did it

The current implementation is only hard code to connect STATE_DB on host database with SonicV2Connector(127.,0.0.1). To support the multiasic platform, we need to query the data entry from STATE_DB of namespace database. Following the existing design to use multi_asic.get_front_end_namespaces. And looping the namespaces to get the output_table for each namespace.

How to verify it

1. running the image on a multasic platform which front panel ports have SFP inserted.
2. execute "sudo sfptuil show error-status". The output should show all ports with status.

admin@sonic:~$ sudo sfputil show error-status
Port        Error Status
----------  --------------
Ethernet0   OK
Ethernet1   OK
Ethernet2   OK
Ethernet3   OK
Ethernet4   OK
Ethernet5   OK
Ethernet6   OK
Ethernet7   OK
Ethernet8   OK
Ethernet9   OK
Ethernet10  OK
Ethernet11  OK
Ethernet12  OK
Ethernet13  OK
Ethernet14  OK
Ethernet15  OK
Ethernet16  OK
Ethernet17  OK
Ethernet18  OK
Ethernet19  OK
Ethernet20  OK
Ethernet21  OK
Ethernet22  OK
Ethernet23  OK
Ethernet24  OK
Ethernet25  OK
Ethernet26  OK
Ethernet27  OK
Ethernet28  OK
Ethernet29  OK
Ethernet30  OK
Ethernet31  OK
Ethernet32  OK
Ethernet33  OK
Ethernet34  OK
Ethernet35  OK

Previous command output (if the output of a command-line utility has changed)

Previous output doesn't have any port name

admin@sonic:~$ sudo sfputil show error-status
Port    Error Status
------  --------------
admin@sonic:~$ 

New command output (if the output of a command-line utility has changed)

[abdosi]

@mlok-nokia can we add code-coverage for same ?

[mlok-nokia]

@mlok-nokia can we add code-coverage for same ?

I am currently on some other task right now, can I add the code-coverage in the next PR? Thanks

[mlok-nokia]

@abdosi Unit Test case test_show_error_status() has been added for this PR. Please review it. Thanks.