[202503] : Backport PR3819 to add multi-asic support for show interface counters fec-histogram CLI command

[arista-setu]

Currently, show fec histogram CLI command provides option for namespace but is not using it. This is why the CLI command aborts and does not return any meaningful results on 202503.

What I did

PR3819 already fixes the underlying issue. This PR has already merged but it was not backported to 202503 branch

In this pull request, I have backported changes from PR3819 to fix the issue on multi-asic systems.

I've also opened another PR to backport the same changes to 202405 branch : #287

How to verify it

Testing command returns expected output.

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

(switch)~# show interface counters fec-histogram -n asic0 Ethernet0
Port Ethernet0 not found in COUNTERS_PORT_NAME_MAP
Aborted!

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

With the changes from this PR, the CLI command return following expected output

(switch):~$ show interfaces counters fec-histogram -n asic0 Ethernet0
Symbol Errors Per Codeword      Codewords
----------------------------  -----------
BIN0                                    0
BIN1                                    0
BIN2                                    0
BIN3                                    0
BIN4                                    0
BIN5                                    0
BIN6                                    0
BIN7                                    0
BIN8                                    0
BIN9                                    0
BIN10                                   0
BIN11                                   0
BIN12                                   0
BIN13                                   0
BIN14                                   0
BIN15                                   0

[arista-setu]

@microsoft-github-policy-service agree company="Arista"

[kenneth-arista]

@prgeor @arlakshm @tjchadaga @rlhui

[judyjoseph]

LGTM