SystemUI: runtime configurable audio panel location

Co-authored-by: Alex Cruz <alex@dirtyunicorns.com>
Co-authored-by: Arian <arian.kulmer@web.de>
Co-authored-by: Bruno Martins <bgcngm@gmail.com>
Co-authored-by: LuK1337 <priv.luk@gmail.com>
Co-authored-by: programminghoch10 <hoch10@kabelbw.de>
Co-authored-by: Sam Mortimer <sam@mortimer.me.uk>
Change-Id: If22c97eb1ce4cfb13396d182d90786f4b7acaee7