Update git submodules

Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - Merge changes from topic 'yamllint-fix'

    * changes:
      [PDF] check-jinja: Replace encrypted str w/ dummy
      [PDF] Fix yamllint issues in installer adapters
      [PDF] check-jinja: Disable check against template
      [PDF] generate_config: eyaml only encrypted PDFs

  - [PDF] check-jinja: Replace encrypted str w/ dummy

    During PDF validation using `check-jinja.sh`, most if not all
    encrypted strings will fail to decrypt due to missing keys on the
    build server. The templater will fallback to using raw plaintext,
    leading to `line too long` yamllint violations.

    Since we don't care about the actual value of the unencrypted
    string, replace the encrypted one with a dummy (shorter) string.

    Change-Id: I0f96db0e055bf84ad43a1df4a0f2bd86cc50fd22
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
  - [PDF] Fix yamllint issues in installer adapters

    Although current YAML files in Pharos are all valid according to
    yamllint, the resulting YAMLs after PDF/IDF + IA interpolations
    still have a lot of violations, which need to be addressed.

    PDF changes:
    - bii/pod1:
      + fix typo in disks_A reference;

    IDF changes:
    - replace empty strings with `~` keyword (will be expanded to 'None');

    IA (installer adapter) changes:
    - apex:
      + add missing document start;
    - compass4nfv:
      + too few spaces before comment;
      + missing starting space in comment;
      + replace '\t' with spaces;
    - daisy:
      + None;
    - fuel:
      + check conf.idf is defined first (fix parse for PODs without IDF);
      + move document start outside conf.idf condition
    - joid:
      + None;

    This is not an exhaustive change, some yamllint issues are still there
    but require either refactoring IAs or changing the PDF/IDF files in a
    way that needs the respective maintainer's input.

    Change-Id: I26743e265217e892b6a94de96a016c295ea24fb5
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
  - [PDF] check-jinja: Disable check against template

    config/pdf/pod1*yaml files are not valid PDFs, but only templates.
    Trying to expand said files against installer adapters would lead
    to funky results, since most fields are expressed as '{val1|val2}'
    in the template files.

    Change-Id: Ieec4d596d0b5246aa506239183a31463951403e7
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
  - [PDF] generate_config: eyaml only encrypted PDFs

    Silence misleading warnings about failed decription for PDFs
    that do not use this feature.
    While at it, print yamllint version used by check-jinja.sh.

    Change-Id: Ica1ff90abaee8c9bb20996899c8f0a7527133618
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>