Update git submodules

Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - Merge "[IDF] Add IDF schema validation based on version"
  - [IDF] Add IDF schema validation based on version

    - add basic structure for IDF schema validation;
    - fill in Fuel section;
    - add stub for Daisy section;
    - add stub for Compass section;
    - add stub for net_config;
    - enable IDF schema validation via `check-schema.sh`;
    - prepare for new IDF versions with different schemas,
      while allowing subsection schema reuse from IDF v0.1;
    - extend validate_schema.py for IDF;

    Change-Id: I59b1c9d857e9dee9e6ff9956e81b2ae6dc27a767
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>