HDA: route speaker volume to Post Mixer Analog

alsa-project/alsa-ucm-conf pull request #643 was opened from Lyapsus:

On certain laptops (e.g., Lenovo Legion Pro 7 16IAX10H), the live speaker gain is exposed through the Post Mixer Analog controls. The default UCM entries point at Speaker/Master, so software volume never touches the woofer amps. Routing the Speaker device to the Post Mixer Analog mixer and volume elements restores proper volume control without affecting other paths

Request URL : https://github.com/alsa-project/alsa-ucm-conf/pull/643 Patch URL : https://github.com/alsa-project/alsa-ucm-conf/pull/643.patch Repository URL: https://github.com/alsa-project/alsa-ucm-conf