[quant] allow `components_to_quantize` to be a non-list for single components (#12234)
* allow non list components_to_quantize.
* up
* Apply suggestions from code review
* Apply suggestions from code review
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
* [docs] components_to_quantize (#12287)
init
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>
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Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>