Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - generate_config: New `-i` arg for j2 includes dir

    jinja2 does not support imports from parent directories, so in order
    for j2 to be able to use '{% from <some>.j2 import ... %}' constructs
    with included j2 residing on a separate dirpath than current j2, add
    support for explicitly adding directories to the templater search
    path.

    This also allows calling generate_config with only file basename as
    '-j' arg value, as long as the dirname is passed via '-i' (can be
    extended later to parsing multiple j2 files at once).

    Change-Id: I943fda9262a6f7de5ee6fcc3e7bc9828c339651a
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
  - generate_config: Enable 'do' j2 extension

    'do' is useful to avoid hacks like {% set _ = x.update(...) %}.
    Instead: {% do x.update(...) %}.

    [1] http://jinja.pocoo.org/docs/2.10/extensions/

    Change-Id: I886beb97e0383ba11b81aa21cf12b11ebc4b05b2
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/pharos b/docs/submodules/pharos
index d760381..8732587 160000 (submodule)
--- a/docs/submodules/pharos
+++ b/docs/submodules/pharos
@@ -1 +1 @@
-Subproject commit d7603817b4d82b3e4c493d9f4c2367b84c8f1e23
+Subproject commit 87325878949d5a315535720828af5185ebaa7a9f