Update git submodules

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

    Change-Id: Ia896c3f9fcd96dd498eef6d1f83d46e29df0cd6b
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 8f39b48..fa58515 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 8f39b4895fa66223ef6293630556457f8fb9a348
+Subproject commit fa58515facceeffd40883e36da277d56fc5e8d90