ASoC: SOF: ipc4-pcm: Harmonize set pipeline state dbg

Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>:

The series harmonizes the debug prints for pipeline state changes.

Currently we only print readable state change for single pipeline
changes but when multiple pipeline's state is changed, it is omitted.

Use human readable information in both cases in a harmonized way to aid
debugging.