Revert "sound control: WCD9320: update speaker gain control for Z1"

This reverts commit a6a4176a0ebafe779b403e4e561674e0806cf81d.
Revert "sound control 3.x: Initial GPL release for WCD9320 Audio Codec"

This reverts commit e0617c9154b178180e42759706d9608c983b527a.
Revert "Sound Control: WCD9320: expose additional controls"

This reverts commit ee8daf75aae72e01789f19716ad514df084360b8.