Revert "Revert "sound control: update speaker gain control for Z1""

This reverts commit fbc6abdbfd9d73a80a0668fb8828418d19cced23.

Change-Id: I1a3ae05f721ad192fb9e7a73b4058da6ae6582ab
Merge "Revert "Revert "sound control: update speaker gain control for Z1""" into du44