sap_storage_setup: Add support for HANA Scaleout NFS filesystems

[marcelmamula]

Description:

1. Changes IF blocks to ELIF for simplification.
2. Add /hana/* block required for SAP HANA Scaleout

      {%- elif nfs_item.mountpoint.startswith('/hana/') %}
        {%- set add_hana = mount_list.extend([
          {
            'mount_src': nfs_item.nfs_path | regex_replace('/$', ''),
            'mountpoint': nfs_item.mountpoint | regex_replace('/$', ''),
          }
        ]) %}