Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - [fuel] IDF: Add DPDK parameters support
    
    In order to enable DPDK for OVS scenarios in Armband, we need DPDK
    specific configuration to be parameterizable.
    The default DPDK configuration values will remain in Fuel repo and
    will be overriden with the values defined in IDF (only if present).
    Since hugepage config and CPU pinning also apply to non-DPDK
    scenarios, handle them together for 'common', respectively 'dpdk'.
    
    To keep things simple, we will reuse the format expected by Fuel's
    reclass model, so we can pass the whole config block as-is.
    
    - IDF schema: fuel: Add strict checking of new block's structure,
      while allowing the rvalues to be more or less freestyle;
    - arm-pod6 IDF: Add initial config block implementation;
    
    JIRA: ARMBAND-342
    
    Change-Id: I9224f06bb6b9fb2387414eb2a1be35461c27fb99
    Signed-off-by: Cristina Pauna <cristina.pauna@enea.com>
    

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diff --git a/docs/submodules/pharos b/docs/submodules/pharos
-Subproject ffc697113c99fa1e955bdce068d67ca15389856
+Subproject 63e122a1d0e7e4ca402353d331f44eda63d966c