igw: stop daemons on purge all calls
igw: stop daemons on purge all calls

When purging the entire igw config (lio and rbd) stop disable the api
and gw daemons.

Fixes Red Hat BZ
https://bugzilla.redhat.com/show_bug.cgi?id=1621255

Signed-off-by: Mike Christie <39daeb1549a929782e38aa87c4e3da7f3844b09a@redhat.com>

ceph/ceph-ansible,fgal/ceph-ansible,fgal/ceph-ansible,ceph/ceph-ansible