Update git submodules

Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - Merge "[fuel] Update IA for vPDF support"
  - [fuel] Update IA for vPDF support

    - move gtw tenant addrs from {6,7,9} to {124,125,126}
      (e.g. 10.0.1.6 -> 10.0.1.124 for ericsson-virtual* PODs);
    - add gtw external (public) addresses, e.g. 10.16.0.124;
    - add ctl external (public) addresses, e.g. 10.16.0.11;

    JIRA: FUEL-322

    Change-Id: Ice73aa3985831dca7427e496850d0865db71477e
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>