Update git submodules

* Update docs/submodules/fuel from branch 'stable/euphrates'
  - Merge "Enable glance v1 api for orchestra tests" into stable/euphrates
  - Enable glance v1 api for orchestra tests

    Change-Id: Ia896c3f9fcd96dd498eef6d1f83d46e29df0cd6b
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
    (cherry picked from commit c2925b6d13a20468845f8af1b54665cbac8b9bef)

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 07baf59..e74a9a6 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 07baf599c51cbd42ef14632284537ec4fe126b8a
+Subproject commit e74a9a603b67084ab9e602a8ab7d4fc938ebf63a