Update git submodules

Update git submodules

* Update docs/submodules/pharos from branch 'stable/euphrates'
  - Merge "PDF: generate_config: Add IDF parsing support" into stable/euphrates
  - PDF: generate_config: Add IDF parsing support

    For a given 'podN.yaml' file, check whether a file named
    'idf-podN.yaml' exists in the same directory, and if it does,
    pass its contents under the 'idf' dict key to the j2 template.

    This assumes the contents of IDF yaml have a root 'idf' key.

    Change-Id: I6c6f1b9f28c38989f8a6ed4a389c9a1da423d76d
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit e5c76e735a99395ab075f95c0f4105f8727a834e)