Allows LibreOffice to start with no bluetooth, and for it to
appear and disappear dynamically at run-time, cleaning up stale
bluetooth sockets, and re-binding successfully each time.

Change-Id: Ifa04c8cc1859c98adca94ac0e57c7ebd85f2f31f
(cherry picked from commit 93abe8688a4700c04b5ab045eb296298e1b49031)
Signed-off-by: Thorsten Behrens <tbehrens@suse.com>