[V2] sof-hda-dsp: Add speaker led support

alsa-project/alsa-ucm-conf pull request #302 was opened from Kobatw:

Replace hard code with variable. before: sysw "-/class/sound/ctl-led/speaker/card1/attach:Master Playback Switch" after: sysw "-/class/sound/ctl-led/speaker/card${CardNumber}/attach:Master Playback Switch"

Request URL : https://github.com/alsa-project/alsa-ucm-conf/pull/302 Patch URL : https://github.com/alsa-project/alsa-ucm-conf/pull/302.patch Repository URL: https://github.com/alsa-project/alsa-ucm-conf