Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - Merge "[IDF] arm-pod8: added as new idf and pdf"
  - [IDF] arm-pod8: added as new idf and pdf

    Change-Id: I01c678b45fd182bef8a95bdf13054a36347e057b
    Signed-off-by: Guillermo Herrero <guillermo.herrero@enea.com>

diff --git a/docs/submodules/pharos b/docs/submodules/pharos
index 56eec7f..d2908ab 160000 (submodule)
--- a/docs/submodules/pharos
+++ b/docs/submodules/pharos
@@ -1 +1 @@
-Subproject commit 56eec7f0a4e379c975bc9c6d57905c24c590fe9a
+Subproject commit d2908abb9b5183b0342c165cf47f679a9ee7e223