[platform][barefoot] Add Psu.get_name

[vboykox]

Signed-off-by: Volodymyr Boyko volodymyrx.boiko@intel.com

Why I did it

To fix the following:

# psuutil status
Traceback (most recent call last):
  File "/usr/local/bin/psuutil", line 8, in <module>
    sys.exit(cli())
  File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.7/dist-packages/psuutil/main.py", line 93, in status
    psu_name = psu.get_name()
  File "/usr/local/lib/python3.7/dist-packages/sonic_platform_base/device_base.py", line 28, in get_name
    raise NotImplementedError
NotImplementedError

How I did it

Implemented get_name

How to verify it

Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006
• 202012

Description for the changelog

A picture of a cute animal (not mandatory but encouraged)

[vboykox]

https://github.com/Azure/sonic-utilities/blob/00bd0cea4f260ca8cecc382a6bcea05272dfd070/psuutil/main.py#L93
@jleveque Maybe it's worth handling not implemented in utilities with default value "PSU " (as it was before)? Or make get_name stated as mandatory somewhere

[jleveque]

https://github.com/Azure/sonic-utilities/blob/00bd0cea4f260ca8cecc382a6bcea05272dfd070/psuutil/main.py#L93
@jleveque Maybe it's worth handling not implemented in utilities with default value "PSU " (as it was before)? Or make get_name stated as mandatory somewhere

I don't think we should implement any default values. Platform vendors should implement the methods in the API. get_name is mandatory, but it (along with a few other methods) may get overlooked by the vendor because they are inherited by all devices from the DeviceBase class.