Deprecate get_channel_name in nidcpower

[luisgomes252]

Description of issue

As part of #1403 we need to deprecate get_channel_name. This also requires that #11584 be resolved.

Some additional considerations from Shreyas:

"Adding hapigen support is one part of it, the other part is to figure how we want to do the actual deprecation in nimi-python - Use DeprecationWarning or a third-party library like https://pypi.org/project/Deprecated/ or something else. Would be good to check with Python experts in the company."