ASoC: move card->pop_time to soc-dapm

Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> says:

This is v3 to move card->pop_time to soc-dapm.
card->pop_time is used only on TI, and Janusz posted patch which will stop
using it. It was posted at 12 Apr 2026, and [1/2] is it as-is.

[2/2] will move card->pop_time to soc-dapm. We can use it via debugfs.
I have added [RFC] on Subject.

Link: https://patch.msgid.link/87wlx9wj1h.wl-kuninori.morimoto.gx@renesas.com

diff --cc include/sound/soc.h
Simple merge

diff --cc sound/soc/soc-core.c
Simple merge

diff --cc sound/soc/ti/ams-delta.c
Simple merge