Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - generate_config: New `-b` arg for batch processing

    Sometimes, parsing multiple j2 templates based on the same PDF+IDF
    is needed, in which case we'd have to call generate_config once for
    each template.

    Add a new argument, `-b`, which allows batch processing of multiple
    templates in one go:
    - files ending in '.j2' (e.g. 'template.yml.j2') will be expanded to
      a file without the '.j2' suffix in the same directory as the
      source template (e.g. 'template.yml');
    - templates not ending in '.j2' are skipped in batch mode;
    - in order to pass multiple templates, `-j` argument can now be passed
      multiple times, similar to `-i`;
    - although relative filepaths still work, it is highly recommended to
      use the full path (abspath) for j2 templates;
    - to avoid filename collisions, j2 parser will open '/' (as well as
      any directories specified via `-i`) and lookup each j2 template
      by its full path;

    Add a new argument, `-v` for verbose logging.

    While at it, import only needed functions from 'os.path' to make our
    code more compact and easier to read.

    Change-Id: I2291935d42e4196813cd75154d5b674bcc330183
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/pharos b/docs/submodules/pharos
index 511ba77..22847e7 160000 (submodule)
--- a/docs/submodules/pharos
+++ b/docs/submodules/pharos
@@ -1 +1 @@
-Subproject commit 511ba774f11a6293d9f5635c08204c775bff583a
+Subproject commit 22847e7628420428a0211249a7a7861822029c2c