igw: fix firewall iscsi_group_name check
igw: fix firewall iscsi_group_name check

The firewall setup for igw is not getting setup because iscsi_group_name
does not it exist. It should be iscsi_gw_group_name.

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

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