Most Fuel PODs do not use encrypted PDFs, so bump Pharos git
submodule to include updated `generate_config.py` to silently
skip decryption in case eyaml is not installed.
Change-Id: I845a32c7001123a93e38197e0daf53d18c797aed Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>