iscsigw: install ceph-iscsi-cli package
iscsigw: install ceph-iscsi-cli package

Install ceph-iscsi-cli in order to provide the `gwcli` command tool.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1602785

Signed-off-by: Guillaume Abrioux <30a9df5a0293a6108675377fa1673f7aa713f915@redhat.com>
(cherry picked from commit 1164cdc002cccb9dc1c6f10fb6b4370eafda3c4b)

fgal/ceph-ansible,fgal/ceph-ansible