Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Merge ".gitignore refresh, fold common expressions"
  - .gitignore refresh, fold common expressions

    Change-Id: I5346ee523b40f1a249394d59dbbe4d3d85c692cb
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index c66828d..0f9744c 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit c66828df53e4eff4d9cfdde7b3f5ae3dc5a3883c
+Subproject commit 0f9744c1fd97bfd102d14104516059b17190b288