mds: move mds fs pools creation
mds: move mds fs pools creation

When collocating mds on monitor node, the cephpfs will fail
because `docker_exec_cmd` is reset to `ceph-mds-monXX` which is
incorrect because we need to delegate the task on `ceph-mon-monXX`.
In addition, it wouldn't have worked since `ceph-mds-monXX` container
isn't started yet.

Moving the task earlier in the `ceph-mds` role will fix this issue.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1578086

Signed-off-by: Guillaume Abrioux <30a9df5a0293a6108675377fa1673f7aa713f915@redhat.com>
(cherry picked from commit 608ea947a9a2dcf35b4a9cf43c0ea0486c36dfb5)
Signed-off-by: Guillaume Abrioux <30a9df5a0293a6108675377fa1673f7aa713f915@redhat.com>

fgal/ceph-ansible,fgal/ceph-ansible