ASoC: remove component->id

Merge series from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:

snd_soc_component has "id", but no one is using it except Qcom. It is
initialized at snd_soc_component_initialize(), but Qcom overwrites it.

According to Srinivas, unfortunately, current Qcom lpass is broken.
But we can update it and then, avoid to use component->id.
Let's do it, and remove it.