sap_vm_provision: Fix adding /etc/hosts for all in play not just itself

[marcelmamula]

Changes

I have incorrectly identified intent behind initial updating of /etc/hosts and reworked approach in #155 has not correctly set them. It has resulted on only own entry added because of flag fact.

This changes fixes that, so that all hosts in play are present in /etc/hosts.

FYI: We are not checking if defined because set_fact sets these facts always.

  ansible.builtin.set_fact:
    sap_vm_provision_dynamic_inventory_anydb_primary_ip:
      "{{ hostvars[sap_vm_provision_dynamic_inventory_anydb_primary_hostname].ansible_host | d(none) }}"

[sean-freeman]

LGTM 👍