jewel: add Speaker DMIC Stereo use case

Change-Id: Idb212af5c3eef9c7b7ac3bebf1dafb2b23500ced
jewel: create filesystems in init, not early-init

* /storage is created in init, meaning these commands fail in early-init

Change-Id: I68df8d8b431924eda148f7541a3826f3b2303c75