lxd/storage/drivers/driver/ceph: Mark ceph.osd.force_reuse as deprecated
lxd/storage/drivers/driver/ceph: Mark ceph.osd.force_reuse as deprecated

Ceph OSD pools are a logical construct, so there's no good reason not to allocate
a new one and because Ceph is by-designed accessible by multiple systems, the
likelihood of someone using this to have two or more LXD servers on the same pool
is pretty high and will fail quite disastrously (data loss).

Signed-off-by: Thomas Parrott <6b778ce645fb0e3dde76d79eccad490955b1ae74@canonical.com>

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