Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - Merge "[IDF] arm-pod9: added as new idf and pdf"
  - [IDF] arm-pod9: added as new idf and pdf

    Change-Id: I415eda9f493fcd70514d5f9be7d58b7b6d1cb88f
    Signed-off-by: Guillermo Herrero <guillermo.herrero@enea.com>

diff --git a/docs/submodules/pharos b/docs/submodules/pharos
index d2908ab..9dff16e 160000 (submodule)
--- a/docs/submodules/pharos
+++ b/docs/submodules/pharos
@@ -1 +1 @@
-Subproject commit d2908abb9b5183b0342c165cf47f679a9ee7e223
+Subproject commit 9dff16e79e852ecddb42b6c9361eee96b776a347