Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - Merge "[PDF] config: Add/update license headers"
  - [PDF] config: Add/update license headers

    This only covers the `config` subdir.

    Change-Id: I1fb9470e216cc2de9a4ac91de44d99e7044e708e
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/pharos b/docs/submodules/pharos
index 8bbd047..091e127 160000 (submodule)
--- a/docs/submodules/pharos
+++ b/docs/submodules/pharos
@@ -1 +1 @@
-Subproject commit 8bbd0474bcfef7e5316279a6a5e8d65018411d5c
+Subproject commit 091e127a21b7081cb805240ceb96f0fe3390608e