Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [AArch64] vcp: Fix up vcp_nodes awk query conflict

    JIRA: FUEL-404

    Change-Id: I12acc90cdb17ecc090a993e1be41d13ad81dbb9d
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index ee1dd31..57040b9 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit ee1dd317ddeebc34b3c038fe8b1eca693ab3ee32
+Subproject commit 57040b97c6317a94020ad27b8001ac0965b208f7