ASoC/SoundWire: improve suspend flows and use set_stream() instead of set_tdm_slots...

Merge series from Bard Liao <yung-chuan.liao@linux.intel.com>:

This series contains three topics.
1. SoundWire: Intel: remove pdm support
2. ASoC/SoundWire: dai: expand 'stream' concept beyond SoundWire
3. ASoC/SOF/SoundWire: fix suspend-resume on pause with dynamic pipelines

The topics are independent but the changes are dependent. So please
allow me to send them in one series.

diff --cc sound/soc/codecs/wcd938x.c
Simple merge