Handle both new and old cmdline.txt locations in Raspbian (#362)

---

- name: Check if /boot/firmware/cmdline.txt exists

  ansible.builtin.stat:

    path: /boot/firmware/cmdline.txt

  register: boot_firmware_cmdline_txt

- name: Enable cgroup via boot commandline if not already enabled

  ansible.builtin.replace:

    path: /boot/cmdline.txt

    path: "{{ (boot_firmware_cmdline_txt.stat.exists) | ternary('/boot/firmware/cmdline.txt', '/boot/cmdline.txt') }}"

    regexp: '^([\w](?!.*\b{{ cgroup_item }}\b).*)$'

    replace: '\1 {{ cgroup_item }}'

  with_items: